CN113349722A

CN113349722A - Laryngoscope for preventing patient airway droplet contamination

Info

Publication number: CN113349722A
Application number: CN202010148520.2A
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 a laryngoscope for preventing droplet contamination of a patient's airway, the laryngoscope comprising: a laryngoscope body which extends in a bending way towards the far end and is used for extending into and expanding the airway of the patient; a patch attachable to and forming a seal with a surface of an object, the patch having: the fixed edge is tightly connected with the laryngoscope body along the circumferential direction; a free edge distal from the laryngoscope body; and the socket is arranged on the adhesive film and used for inserting an external plug-in. The laryngoscope of this application can effectively cover patient's mouth and nose, keeps apart droplet, aerosol, avoids taking place droplet, aerosol pollution when carrying out trachea cannula, inhaling operations such as phlegm to patient.

Description

Laryngoscope for preventing patient airway droplet contamination

Technical Field

The embodiment of the application relates to a medical instrument, in particular to a laryngoscope for preventing the spray contamination of an 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, a laryngoscope with convenient operation is urgently needed, so that the virus of the patient is prevented from being transmitted to the medical staff through respiratory droplets and aerosol, and the operation, nursing and the like of the medical staff are not influenced.

Disclosure of Invention

In view of the above, it is a primary object of the present application to provide a laryngoscope for preventing droplet contamination of a patient's airway, the laryngoscope comprising: a laryngoscope body which extends in a bending way towards the far end and is used for extending into and expanding the airway of the patient; a patch attachable to and forming a seal with a surface of an object, the patch having: the fixed edge is tightly connected with the laryngoscope body along the circumferential direction; a free edge distal from the laryngoscope body; and the socket is arranged on the adhesive film and used for inserting an external plug-in.

Optionally, an openable and closable elastic sealing cover is arranged on the socket, and the elastic sealing cover is opened when external extrusion force is applied to the elastic sealing cover and is tightly attached to an external plug-in component inserted into the socket.

Optionally, the laryngoscope body further comprises:

a laryngoscope blade extending from a proximal end to a distal end in a curved manner;

a display device; and

and one end of the handle is connected with the display device, and the other end of the handle is detachably connected with the laryngoscope lens.

Optionally, the laryngoscope blade root is sealingly connected to the fixed edge.

Optionally, the surface of the object is a tissue surface of a human body, and the area of the lower surface at least covers the tissue surface around the mouth and nose of the human body.

Optionally, the resilient sealing cover comprises one or more layers of sealing members.

Optionally, the elastic sealing cover is composed of a plurality of elastic valves arranged in sequence by taking a central point of the insertion opening as a center, and when the elastic sealing cover is subjected to external extrusion force, the elastic valves are opened and tightly attached to the outer wall of the inserted external plug-in unit.

Optionally, the insertion opening is provided with a sealing ring, the inner side of the sealing ring is connected with the elastic valve, and the outer side of the sealing ring is connected with the adhesive film.

Optionally, the laryngoscope blade is provided with a groove for securing the external insert when inserted into the socket.

Optionally, the laryngoscope further comprises a pair of nasal prongs connected to the body.

It can be seen from above that, the laryngoscope of this application can effectively cover patient's mouth and nose, keeps apart droplet, aerosol, avoids taking place droplet, aerosol pollution when carrying out trachea cannula, inhaling phlegm etc. operation because of to patient.

Secondly, be equipped with at least one self sealss socket on the pad pasting, dynamic leakproofness can supply outside plug-in components, for example the intubate business turn over, when outside plug-in components inserted the socket, the elasticity sealed lid that sets up on the socket 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.

Fig. 1 is a schematic view of an assembled state of an embodiment of a laryngoscope according to the application;

fig. 2 is an exploded schematic view of an embodiment of a laryngoscope according to the application;

fig. 3 to 5 are schematic views of embodiments of the elastic sealing cover of the present application;

FIG. 6 is a schematic view of the back of the elastomeric seal cover of the present application shown in FIG. 5;

FIGS. 7-10 are schematic views of the seal ring of the present application and an outer insert inserted into the seal ring, respectively;

fig. 11 is a side view of an embodiment of a laryngoscope according to the application.

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 and 2, an embodiment of the present application provides a laryngoscope 300 for preventing droplet contamination of a patient's airway, comprising: a laryngoscope body 301, which extends in a distal bending manner, for extending into and opening the airway of the patient; a film 101 attachable to and forming a seal with a surface of an object, the film 101 having: a fixing edge 302 which is tightly connected with the laryngoscope body 301 along the circumferential direction; a free edge 303 distal to the laryngoscope body 301; and a socket 102 provided on the film 101 for inserting an external plug-in.

The lower surface 101a of the film 101 may 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 tissue surface of a human body, and the lower surface 101a has an area at least covering the skin and gum tissue 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 material of the film 101 may be transparent material to facilitate the medical staff to operate the visual field clearly.

In one embodiment of the present application, a resilient sealing cover 104 is provided on the socket 102, the resilient sealing cover 104 is opened when an external pressing force is applied, and the resilient sealing cover 104 is tightly attached to an external plug 105 inserted into the socket 102. The outer insert 105 may be any instrument, such as an intubation tube, laryngoscope, puncture outfit, scalpel, and the like. 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.

Referring to fig. 3 to 6, 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. 3 and 4), overlapping (see fig. 5 and 6), or other combinations.

In this embodiment, as shown in fig. 4, 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 notch 109, and the angle of each notch 109 is consistent, so that all the notches 109 form an approximately circular arrangement, which makes the outer insert 105 more sealed against the flexible valve when the outer insert 105 is inserted into the receptacle 102. In addition, the resilient sealing cover 104 may include one or more layers of sealing members that overlap each other to further enhance the sealing of the outer insert 105 to the resilient valve.

Referring to fig. 7 to 10, 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. 7 and 8, 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. 9 and 10, 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 applicator may also include a pair of prongs (not shown) that are connected to the film 101, such as by a connecting cord. 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.

Referring to fig. 2, in an embodiment of the present application, the laryngoscope body 301 further comprises: a laryngoscope blade 304 extending from the proximal end to the distal end; a display device 305; and a handle 306 having one end connected to the display device 305 and the other end detachably connected to the laryngoscope blade 304. The root of the laryngoscope blade 301 is connected with the fixed edge 302 in a sealing way. In an embodiment of the present application, a connecting member 309 capable of receiving the root of the laryngoscope blade 301 is disposed on the fixing edge 302, a sealing member 310 is disposed between the root of the laryngoscope blade 301 and the fixing edge 302, the root of the laryngoscope blade 301 can be moved to adjust the position in the connecting member 309, and finally is tightly fixed in the connecting member 309 through the sealing member 310. The laryngoscope blade 304, which extends from a proximal end to a distal end, may be used as an oral support device to hold the upper and lower teeth apart to prevent the patient from engaging the external insert.

Referring to fig. 11, in an embodiment of the present application, a groove 308 is formed on the laryngoscope blade 304 for fixing the external insert 105 when the external insert 105 is inserted into the socket 102.

In an embodiment of the application, the laryngoscope 300 is used by assembling the laryngoscope lens 301, the handle 306 and the display device 305 before use, firstly attaching the film 101 to the oronasal position of a patient, inserting an endotracheal tube (an external insertion piece) into the airway of the patient through the insertion opening 102, fixing the endotracheal tube in the groove 308 on the laryngoscope lens 304, inserting the laryngoscope lens 301 to the glottis position, inserting the endotracheal tube into the airway of the patient, properly pulling out a part of the laryngoscope lens 301 to the outside of the oral cavity after the insertion is completed, and leaving a part of the laryngoscope lens 301 between teeth as an oral cavity supporting device to prevent the patient from occluding the endotracheal tube, and at the moment, disconnecting the laryngoscope lens 301 and the handle 306. After the operation is finished, a part of the tracheal cannula is pulled out, the lower jaw of the patient is pressed down, the airway of the patient is closed, and the laryngoscope lens 301 with the sticking film 101 is removed.

To sum up, the laryngoscope of this application can effectively cover patient's mouth and nose, keeps apart droplet, aerosol, avoids taking place droplet, aerosol pollution when carrying out trachea cannula, inhaling phlegm etc. operation because of to patient.

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. A laryngoscope for use in preventing droplet contamination of a patient's airway, the laryngoscope comprising:

a laryngoscope body which extends in a bending way towards the far end and is used for extending into and expanding the airway of the patient;

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

the fixed edge is tightly connected with the laryngoscope body along the circumferential direction;

a free edge distal from the laryngoscope body;

and the socket is arranged on the adhesive film and used for inserting an external plug-in.

2. A laryngoscope according to claim 1, wherein the slot is provided with a resilient sealing cover which is openable and closable, the sealing cover opening on application of external compressive forces and the sealing cover fitting snugly against an external insert inserted into the slot.

3. The laryngoscope as recited in claim 1, wherein the laryngoscope body further comprises:

a display device; and

4. A laryngoscope according to claim 1 or claim 2, wherein the root portion of the blade is sealingly connected to the retaining edge.

5. A laryngoscope according to claim 1, wherein the surface of the body is a body tissue surface and the inferior surface is of an area to cover at least the tissue surface surrounding the nose and mouth of a human body.

6. A laryngoscope according to claim 1, wherein the resilient sealing cover comprises one or more layers of sealing member.

7. A laryngoscope according to claim 6, wherein the resilient sealing cover comprises a plurality of resilient valves arranged in series about a central point of the socket, the resilient valves opening and engaging closely with the outer wall of the inserted external insert when the resilient sealing cover is subjected to external compressive forces.

8. A laryngoscope according to claim 7, wherein the socket is provided with a sealing ring, the inner side of which is connected to the resilient valve and the outer side of which is connected to the patch.

9. A laryngoscope according to claim 1, wherein the blade is provided with a groove for securing the external insert when inserted into the socket.

10. A laryngoscope according to claim 1, wherein the laryngoscope further comprises a pair of nasal prongs connected to the body.