CN114732341A

CN114732341A - Laryngoscope

Info

Publication number: CN114732341A
Application number: CN202210471377.XA
Authority: CN
Inventors: 续飞
Original assignee: Peking University Third Hospital Peking University Third Clinical Medical College
Current assignee: Peking University Third Hospital Peking University Third Clinical Medical College
Priority date: 2022-04-28
Filing date: 2022-04-28
Publication date: 2022-07-12

Abstract

The invention discloses a laryngoscope, wherein a display unit of a laryngoscope handle mechanism is arranged on a handle, a support component of the laryngoscope handle mechanism comprises a laryngoscope body and a traction component, the laryngoscope body comprises a lens piece and a connecting component, the lens piece is provided with a camera and a light source, the connecting component is positioned between the lens piece and the handle, the connecting component comprises at least one connecting piece, one end of the adjacent side wall of the adjacent connecting piece is connected, the lens piece is connected with one end of the adjacent side wall of the adjacent connecting piece, and the traction component is used for controlling the position of the lens piece and/or the connecting piece. The laryngoscope of the invention adopts the traction piece to control the position of the lens piece and/or the connecting piece to control the bending angle of the laryngoscope body, thus realizing the effect of flexible deformation of the laryngoscope; the connection between the lens member and the end of the adjacent side wall of the connector member and the connection between the end of the adjacent side wall of the adjacent connector member may allow the support assembly to support the lens member and the connector member relative to each other when deformed, thereby providing a greater uplift force.

Description

Laryngoscope

Technical Field

The invention relates to the field of visual laryngoscopes, in particular to a laryngoscope.

Background

A visual laryngoscope is a visual intubation-assisted device. The existing visible laryngoscope has the characteristic of wide visual field, but the laryngoscope body can not deform, and the problems of difficult laryngoscope implantation or difficult glottis exposure can occur to patients with limited opening, limited head, small mandible, narrow pharyngeal cavity and the like, so that the intubation failure is caused, and even the life safety of the patients is threatened.

The lens direction of the soft visible laryngoscope can be flexibly changed through the snake bone structure at the front end of the laryngoscope body, but the force for lifting the tongue depressor of the soft visible laryngoscope by the snake bone structure is small, the epiglottis is difficult to lift at the epiglottis valley to expose the glottis, the tongue depressor is required to stretch into the lower part of the epiglottis to lift the epiglottis, the operation difficulty is high, and the operation is complicated. Moreover, the soft visual laryngoscope has a softer body, and cannot lift the tongue body in the oral cavity to enlarge the space of the oropharyngeal cavity, and a special guide system is often needed for guiding during the tracheal intubation operation.

Therefore, how to provide a laryngoscope which is flexible and can provide larger uplifting force and is convenient for intubation becomes an important technical problem to be solved by the technical personnel in the field.

Disclosure of Invention

It is an object of the present invention to provide a new solution for a laryngoscope which is flexible and provides a greater lifting force to facilitate intubation.

According to a first aspect of the invention, there is provided a laryngoscope.

This laryngoscope includes handle mechanism and mirror body mechanism, handle mechanism includes handle and display element, the display element is installed on the handle, mirror body mechanism includes supporting component and overcoat, the supporting component includes the mirror body and draws the piece, the overcoat cover is established outside the mirror body, the mirror body includes lens spare and coupling assembling, be equipped with camera and light source on the lens spare, coupling assembling is located lens spare with between the handle, just coupling assembling includes at least one connecting piece, and is adjacent the one end of the adjacent lateral wall of connecting piece is connected, lens spare and adjacency the one end of the adjacent lateral wall of connecting piece is connected, it is used for control to draw the piece lens spare and/or the position of connecting piece is in order to change the crooked angle of the mirror body.

Optionally, the support assembly further comprises a support member, and the support member connects the handle and the mirror body.

Optionally, the lens piece is further provided with a tongue depressor.

Optionally, the end face of the camera and the end face of the light source are not coplanar.

Optionally, the traction piece is a pull rope, and the pull rope is connected with the lens piece and the connecting piece.

Optionally, the support assembly further includes a driving member, the driving member is mounted on the handle, and the driving member is connected to one end of the pull rope.

Optionally, the driving member is an angle trigger, a knob or a pressure lever.

Optionally, the pull rope is fixedly connected with the lens piece, a pull rope channel is arranged on the connecting piece, and the pull rope penetrates through the pull rope channel.

Optionally, the support assembly includes at least two of the traction members, and each of the traction members is fixedly connected to a different connection position on the lens member; or,

the tail end of the single traction piece is provided with a plurality of branch lines fixedly connected with different connecting positions on the lens piece.

Optionally, the laryngoscope further comprises a suction tube, an opening at one end of the suction tube is positioned on the end face of the lens piece, and an opening at the other end of the suction tube is positioned on the handle; and/or

The laryngoscope also comprises a breather pipe, wherein an opening at one end of the breather pipe is positioned on the end surface of the lens piece, and an opening at the other end of the breather pipe is positioned on the handle.

Optionally, a side wing is arranged on the connecting piece, and the side wing extends from the outer surface of the connecting piece towards the direction far away from the mirror body.

Optionally, the support assembly further comprises a guide channel, the guide channel is disposed on the outer wall surface of the mirror body, and the guide channel extends along the length direction of the mirror body.

Optionally, the connecting pieces have connecting surfaces and mating surfaces, the connecting surfaces of the connecting pieces are located on the same side of the mirror body, edges of the connecting surfaces of adjacent connecting pieces are connected, and the mating surfaces of adjacent connecting pieces are arranged oppositely.

Optionally, an included angle formed between the connection surface and the mating surface is less than or equal to 90 °.

Optionally, the connecting assembly further includes a connecting piece, and two ends of the connecting piece are respectively connected to the connecting faces of the adjacent connecting pieces.

Optionally, the connecting assembly further comprises a hinge connecting edges of the connecting faces adjacent to the connecting member.

Optionally, coupling assembling still includes the support bar, the connection face of connecting piece with the support bar is laminated mutually, just the connection face of connecting piece with the support bar is connected.

Optionally, the connector has a frame-like structure.

Optionally, the cross section of the connecting piece along the width extension direction of the mirror body is square, rectangular, semicircular, oval or trapezoidal.

Optionally, the cross section of the connecting piece along the length extending direction of the mirror body is trapezoidal, the connecting surface is located on the lower bottom surface of the connecting piece, and the matching surface is located on the side waist surface of the connecting piece.

Optionally, a plane of a connection position between the traction piece and the connection piece is a plane on the connection piece, which is farthest from the connection surface.

The laryngoscope of the invention adopts the traction piece to control the position of the lens piece and/or the connecting piece to control the bending angle of the laryngoscope body, thus realizing the effect of flexible deformation of the laryngoscope; the connection between the end parts of the adjacent side walls of the lens piece and the connecting piece and the connection between the end parts of the adjacent side walls of the adjacent connecting piece can enable the supporting component to support the lens piece and the connecting piece when the supporting component is deformed, so that larger uplifting force is provided, the laryngoscope can enable the epiglottis to be directly uplifted at the epiglottis to expose the glottis, the step of intubation operation is simplified, and intubation efficiency is facilitated.

Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.

Fig. 1 is a partial schematic view of a laryngoscope embodiment of the invention in a relaxed state.

Fig. 2 is a partial structural schematic view of a laryngoscope embodiment of the invention in a stressed state.

Fig. 3 is a partial structural schematic view of a second laryngoscope embodiment of the invention.

Fig. 4 is a partial structural schematic view of a third laryngoscope embodiment of the invention.

Fig. 5 is a schematic structural view of the embodiment of the lens piece of the laryngoscope of the invention.

Fig. 6 is a schematic structural view of a first embodiment of a connector of a laryngoscope according to the invention.

Fig. 7 is a schematic structural view of a second embodiment of a laryngoscope connecting piece according to the invention.

The figures are labeled as follows:

the endoscope comprises a handle-1, a display unit-2, a lens body-3, a lens piece-31, a camera-311, a light source-312, a connecting piece-32, a connecting surface-321, a matching surface-322, a side wing-323, a pull rope channel-324, a pipeline channel-325, a supporting piece-4, a tongue depressor-5, a driving piece-6, an air pipe-7, a suction pipe-8, a hinge piece-9 and a supporting piece-10.

Detailed Description

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.

In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.

As shown in fig. 1 to 7, the invention provides a laryngoscope comprising a handle mechanism and a body mechanism.

The mirror handle mechanism comprises a handle 1 and a display unit 2, wherein the display unit 2 is arranged on the handle 1. The handle 1 is used for the operator to conveniently hold the laryngoscope. The display unit 2 may be, for example, a display screen. The image shot by the camera at the front end of the laryngoscope can be observed through the display unit 2, so that the operation of visual intubation can be accurately realized.

The scope mechanism includes a support member and an outer sleeve (not shown). The supporting component comprises a lens body 3 and a traction piece (not shown in the figure), and the outer sleeve is sleeved outside the lens body 3. The outer sleeve can play the role of an auxiliary supporting component and a sealing supporting component. In particular, the outer sleeve is wrapped around the support member. The outer cover may be made of, for example, a woven net or resin.

The lens body 3 includes a lens member 31 and a connecting member. The lens member 31 is provided with a camera 311 and a light source 312. The patient's larynx is illuminated by a light source 312 and an image is acquired by a camera 311.

The connecting assembly is located between the lens member 31 and the handle 1 and comprises at least one connecting member 32. The connecting assembly can serve to connect the lens member 31 and the handle 1, and to assist or control the bending deformation of the lens body 3.

When the connecting component has only one connecting piece 32, the connecting piece 32 is used for directly connecting the lens piece 31 and the handle 1 together, the position of the lens piece 31 relative to the connecting piece 32 can be changed, and the lens body 3 can be bent and deformed through the lens piece 31.

When the connecting member includes two or more connecting members 32, the connecting members 32 can be coupled together to achieve the bending deformation of the mirror body 3.

One end of adjacent side walls of adjacent connectors 32 are connected. The connection position of the adjacent side walls of the adjacent connecting pieces 32 is positioned at the end part of each side wall, so that the adjacent connecting pieces 32 can be mutually supported at the end parts of the side walls when the relative movement occurs, and the effect that the lens body 3 is more stable in the bending deformation process is achieved. Moreover, the location of the connection of adjacent connectors 32 at the ends of adjacent sidewalls also facilitates increasing the range of motion of the connectors 32 and reducing interference between adjacent connectors 32. When the relative position of the adjacent connecting members 32 is changed, the adjacent connecting members 32 are relatively rotated with the joint between the connecting members 32 as a rotation axis. In specific implementation, the connection between the adjacent connecting members 32 can be realized by connecting shafts, connecting sheets and the like.

In addition, the connecting ends of the adjacent side walls of the adjacent connecting pieces 32 can have a certain distance therebetween to increase the moving range of the connecting pieces 32, so that the bending deformation of the mirror body 3 is more flexible.

The lens member 31 is connected to one end of the adjacent side wall of the adjacent connecting member 32. The joint of the lens piece 31 and the adjacent connecting piece 32 is located at the end of the adjacent side wall of the lens piece 31 and the connecting piece 32, so that the lens piece 31 and the connecting piece 32 can be mutually supported at the end of the adjacent side wall when relative movement occurs, and the effect of more stabilizing the lens body 3 in the bending deformation process is achieved. Moreover, the connecting position of the lens piece 31 and the connecting piece 32 at the end of the adjacent side wall is also beneficial to increasing the moving range of the lens piece 31 and reducing the interference between the lens piece 31 and the connecting piece 32. When the position of the lens element 31 relative to the connecting element 32 changes, the lens element 31 rotates relative to the connecting point between the lens element 31 and the connecting element 32. In a specific implementation, the connection between the lens element 31 and the connecting element 32 can be realized by a connecting shaft, a connecting sheet and the like.

In addition, the lens piece 31 and the connecting end of the adjacent side wall of the connecting piece 32 can have a certain distance therebetween to increase the movable range of the lens piece 31, so that the bending deformation of the lens body 3 is more flexible.

The traction member is used to control the position of the lens member 31 and/or the connecting member 32 to change the bending angle of the mirror body 3. The pulling member may be, for example, a pulling rope, and the pulling member may apply a force to the lens member 31 and/or the connecting member 32 to pull the lens member 31 and/or the connecting member 32, so that the position of the lens member 31 and/or the connecting member 32 is changed. Alternatively, the traction member may be, for example, a pull rod connected to the lens member 31 and the connecting member 32, and the pull rod is driven by an electric or manual driving mechanism so that the position of the lens member 31 is changed.

In specific implementation, one end of the traction piece can be fixedly connected with the lens piece 31, and the other end of the traction piece can penetrate through the connecting piece 32 and the handle 1 and then be exposed out of the handle 1, so that an operator can directly apply force to the traction piece.

The laryngoscope of the invention can have two states, a relaxed state and a stressed state, as described in detail below:

in the relaxed state, neither the lens element 31 nor the connecting element 32 is subjected to the action of the pulling element, and the positions of the lens element 31 and the connecting element 32 are not changed under the action of the external force. At this time, a certain distance may be maintained and there is no strong interaction between the sidewall of the lens member 31 connected to the connection member 32 and the sidewall of the connection member 32 connected to the lens member 31 and the adjacent sidewall of the adjacent connection member 32.

Under the stress state, the lens piece 31 is acted by the traction piece, the position of the lens piece 31 relative to the adjacent connecting piece 32 is changed, the lens piece 31 is jointed with the adjacent side wall of the adjacent connecting piece 32 and/or mutual acting force exists between the lens piece 31 and the adjacent side wall of the adjacent connecting piece 32, so that the lens piece 31 moves under the supporting action of the adjacent connecting piece 32. Adjacent side walls of adjacent links 32 abut and/or there is a force of interaction between adjacent side walls of adjacent links 32 causing adjacent links 32 to move under the support of each other.

When the laryngoscope is in a stressed state, the bending angle of the laryngoscope body 3 can be flexibly adjusted according to the change of the acting force of the traction piece. Since the lens member 31 can be supported by adjacent connecting members 32 and/or adjacent connecting members 32 can be supported by each other, the curved mirror body 3 can provide a greater uplifting force for the purpose of directly lifting the epiglottis at the vallecula to expose the glottis.

When the laryngoscope is used, the laryngoscope body 3 is firstly inserted into the oral cavity of a patient, and the traction piece is controlled according to the requirement of the bending angle, so that the laryngoscope body 3 is bent to different degrees. After the epiglottis is seen by the camera on the lens element 31, the mirror body 3 is bent by the action of the traction element on the mirror body 3, so that the epiglottis is lifted to expose the glottis. During exposure of the glottis, the laryngoscope may also be lifted appropriately to assist in exposing the glottis and to increase the oropharyngeal space, thereby facilitating insertion of the endotracheal tube.

The laryngoscope of the invention adopts the traction piece to control the position of the lens piece 31 and/or the connecting piece 32 to control the bending angle of the laryngoscope body, thus realizing the effect of flexible deformation of the laryngoscope. The connection between the lens piece 31 and the end of the adjacent side wall of the connecting piece 32 and the connection between the end of the adjacent side wall of the adjacent connecting piece 32 can enable the supporting component to support the lens piece 31 and the connecting piece 32 when the supporting component is deformed, so that a larger uplifting force is provided, the laryngoscope can be directly lifted to expose the glottis, the intubation operation step is simplified, and the intubation efficiency is facilitated.

In one embodiment of the laryngoscope of the invention, the support assembly further comprises a support 4, the support 4 connecting the handle 1 and the mirror body 3. The two ends of the supporting member 4 can be fixedly connected with the handle 1 and the nearest connecting member 32, respectively. The support 4 may be a columnar structure or a plate-like structure having a fixed shape, and a passage for a running wire or a running pipe may be provided in the support 4. The supporting piece 4 can play a role that a user conveniently controls the laryngoscope, and the use convenience of the laryngoscope is improved.

In particular implementations, the length of the support member 4 may be greater than the length of a single connector member 32.

In one embodiment of the laryngoscope according to the invention, a tongue depressor plate 5 is also provided on the lens piece 31. The tongue depressor 5 may be fixed to the lens member 31 by welding or integral molding. When the laryngoscope with the tongue depressor 5 is used, after the epiglottis is seen by the camera on the lens piece 31, the tongue depressor 5 is stretched into the vallecula of the epiglottis, and the epiglottis is lifted to expose the glottis. In addition, the laryngoscope with the tongue depressor 5 can increase the visual field at the front end of the laryngoscope in the process of inserting the laryngoscope into the oral cavity and the pharyngeal cavity, so that the structure of the oral cavity and the pharyngeal cavity can be distinguished more easily.

In one embodiment of the laryngoscope of the invention, the end face of the camera 311 and the end face of the light source 312 are not coplanar. The end surface of the camera 311 and the end surface of the light source 312 are not coplanar, for example, the end surface of the camera 311 is located in front of the end surface of the light source 312, or the end surface of the light source 312 is located in front of the camera 311, where the front is a side far away from the connecting member 32 adjacent to the lens member 31.

The end face of the camera 311 and the end face of the light source 312 are arranged to be not coplanar, when the casing of the mirror body 3 is sleeved with the disposable casing, the transparent baffle at the front end of the casing is correspondingly attached to the end face of the camera 311 and the end face of the light source 312, so that the light source 312 can not irradiate the transparent baffle of the casing and reflect to the camera 311, the facula phenomenon can be avoided, and the camera 311 is guaranteed to obtain clear images.

In one embodiment of the laryngoscope according to the invention, the pulling element is a pull cord which is connected to the lens element 31 and the connector element 32. The pull rope and the lens piece 31 can be connected together by welding or clamping of a protrusion and a groove. The connection between the pull rope and the connecting piece 32 can be realized by arranging a pull rope through hole on the connecting piece 32 and enabling the pull rope to pass through the pull rope through hole; or, the pull rope is arranged on the connecting piece 32 and passes through the pull rope ring; alternatively, the pull rope is passed through a pull rope tube provided on the connecting member 32. In practice, the pull ring or pull tube may be disposed on the outer surface of the connector 32, or on the inner wall surface of the hollow connector 32. The traction member of the pull rope structure is easy to implement, has low cost, and can flexibly traction the lens piece 31 and the connecting piece 32.

Further, the support assembly further comprises a driving member 6, the driving member 6 being mounted on the handle 1. The driving member 6 is connected to one end of the pulling rope. The drive element 6 can drive the pull rope more flexibly and reliably, so that the pull rope pulls the lens element 31 and the connecting element 32 under different stress conditions.

In one embodiment, the driving member 6 can be an angle trigger, a knob or a lever. The angle trigger is rotatably connected to the handle 1, and the angle trigger can be fixedly connected to one end of the pull cord, so that the pull cord can be driven to pull the lens piece 31 and the connecting piece 32 by rotating the angle trigger. The knob is screwed with the handle 1, and the length of the pull rope is changed by screwing in and screwing out the knob on the handle 1, so that the lens piece 31 and the connecting piece 32 are pulled. The pressure lever can be rotatably connected with the handle 1 and can be fixedly connected with one end of the pull rope, so that the pull rope can be driven to pull the lens piece 31 and the connecting piece 32 by applying force to the pressure lever.

Further, in order to better control the cost and improve the flexibility of the laryngoscope, the pulling rope is fixedly connected with the lens piece 31, the connecting piece 32 is provided with a pulling rope channel 324, and the pulling rope passes through the pulling rope channel 324. The pull cord is movable within the cord passage 324 of the attachment member 32 such that the pull cord moves the attachment member 32 when the pull cord is moved to a position where the force applied to the attachment member 32 is sufficiently large (e.g., the pull cord abuts a wall of the cord passage 324 of the attachment member 32).

In particular implementations, the pull cord channel 324 may be a pull cord via disposed in a wall of the connector 32; alternatively, the drawstring passage 324 may be a drawstring tube attached to the inner wall of the line passage 325 of the connector 32 by welding or bonding, etc., through which the drawstring may be passed; still alternatively, the pull rope passage may be a pull rope tube attached to the outer wall surface of the connecting member 32 by welding or adhesive attachment, and the pull rope may pass through the pull rope tube.

Further, the support assembly comprises at least two traction members, each traction member being fixedly connected to a different connection location on the lens element 31. The arrangement of the plurality of traction pieces can more effectively apply force to the lens piece 31, avoid the problem that the supporting assembly deviates in the bending deformation process, and is favorable for improving the controllability of the lens body 3. In an implementation, the positions where the plurality of pulling members are connected to the lens member 31 are all located on the same surface of the lens member 31, and the positions where the pulling members are connected to the lens member 31 may be located on the upper edge of the surface of the lens member 31 opposite to the adjacent connecting member 32.

Furthermore, several traction elements can cooperate with one and the same drive element 6.

Further, a plurality of branch lines fixedly connected with different connecting positions on the lens element 31 are arranged at the tail end of the single traction element. The mode that a single traction piece is connected with a plurality of connecting positions on the lens piece 31 can more effectively apply force to the lens piece 31, avoid the problem of deviation in the bending deformation process of the supporting component and be beneficial to improving the controllability of the lens body 3. In practical implementation, the positions of the lens element 31 connected to the branch lines of the pulling elements are all located on the same surface of the lens element 31, and the connecting positions can be evenly distributed on the surface of the lens element 31, and the connecting positions of the pulling elements and the lens element 31 can be located on the upper edge of the surface of the lens element 31 opposite to the adjacent connecting element 32.

In one embodiment of the laryngoscope of the invention, the laryngoscope further comprises a suction tube 8. One end opening of the suction tube 8 is positioned on the end surface of the lens piece 31, and the other end opening of the suction tube 8 is positioned on the handle 1. Contaminants such as secretions, blood and the like in the oropharyngeal cavity can enter the suction tube 8 from an inlet of the suction tube 8 located on the end face of the lens piece 31 and leave the laryngoscope from an outlet on the handle 1.

When the laryngoscope with the suction tube 8 meets the pollutants such as secretion, blood and the like in the oropharyngeal cavity, the pollutants enter the suction tube 8 from the inlet of the suction tube 8 by controlling the suction unit (such as an air pump) connected with the outlet of the suction tube 8 and are finally sucked out of the body, so that the aim of preventing the lens piece 31 of the laryngoscope from being polluted by the pollutants is fulfilled.

In one embodiment of the laryngoscope of the invention, the laryngoscope further comprises a snorkel 7. One end opening of the breather pipe 7 is positioned on the end surface of the lens piece 31, and the other end opening of the breather pipe 7 is positioned on the handle 1. Oxygen or local anaesthetic may enter the laryngoscope from an inlet on the handle 1 of the ventilation tube 7 and enter the oropharyngeal cavity from an outlet on the lens element 31.

A laryngoscope provided with a ventilation tube 7 can provide oxygen through the ventilation tube 7 when it is required to provide oxygen to a patient. The air ejected from the ventilation tube 7 can also prevent secretion in the oropharyngeal cavity from approaching the lens piece 31, so that the effect of better preventing pollutants from polluting the lens is achieved. When it is desired to spray a local anesthetic on the throat of a patient, the drug can be administered through ventilation tube 7.

The suction tube 8, the ventilation tube 7 or both the suction tube 8 and the ventilation tube 7 can be arranged on the laryngoscope by a person skilled in the art according to actual needs. When the suction tube 8 and the ventilation tube 7 are arranged on the laryngoscope at the same time, a certain distance can be reserved between the outlet and the inlet of the suction tube 8 and the ventilation tube 7, so that the functions of the laryngoscope in the operations of suction, air supply and drug administration are not influenced mutually.

In one embodiment of the laryngoscope according to the invention, the attachment member 32 is provided with a wing 323, the wing 323 extending from the outer surface of the attachment member 32 in a direction away from the body 3. The side flaps 323 may have a plate-like structure. When performing endotracheal intubation, the side wings 323 support the inside of the oropharyngeal cavity to form a channel for endotracheal intubation, thereby providing more convenient operating space for endotracheal intubation.

In particular embodiments, the wings 323 can extend in a direction parallel to the central axis of the laryngoscope when in a relaxed state.

In one embodiment of the laryngoscope according to the invention, the support assembly further comprises a guide channel (not shown) provided on the outer wall surface of the mirror body 3 and extending along the length of the mirror body 3. The endotracheal tube or guide tube guiding the endotracheal tube is movable within the guide channel to enable the endotracheal tube to move along the laryngoscope in a more controlled manner.

The guide passage may be a groove-like structure directly formed on the outer wall surfaces of the connector 32 and the lens member 31. Alternatively, the guide passage may be a guide tube (having a certain elasticity) attached to the outer wall surfaces of the connection member 32 and the lens member 31. Alternatively, the guide passage may be a guide tube fixed to the outer wall surfaces of the connector 32 and the lens 31 in a groove-like structure.

In one embodiment of the laryngoscope of the invention, the connector 32 has a connecting face 321 and a mating face 322. The connecting surface 321 of each connecting member 32 is located on the same side of the lens body 3, the edges of the connecting surfaces 321 of adjacent connecting members 32 are connected, and the matching surfaces 322 of the adjacent connecting members 32 are oppositely arranged. The connecting surface 321 of the connecting piece 32 can combine a plurality of connecting pieces 32 into an integral connecting component, and the arrangement of the matching surface 322 can play a role of mutual supporting of the adjacent connecting pieces 32, so that the endoscope body 3 can have larger lifting force, and the laryngoscope can directly lift the epiglottis at the epiglottis to expose the glottis, thereby simplifying the step of intubation operation and being beneficial to improving the intubation efficiency.

The attachment face 321 of the attachment member 32 refers to the face on which the surfaces that attach the attachment members 32 together may be provided on the attachment member 32. The mating surface 322 of the connector 32 is the surface on which the connector assembly abuts or supports when acted upon by the puller. The positions of the connection surface 321 and the mating surface 322 are different depending on the shape of the connection member 32. For example, when the connecting member 32 has a truncated pyramid shape, the connecting surface 321 can be located on the bottom surface of the connecting member 32, the mating surface 322 can be located on the side surface of the connecting member 32, and the mating surfaces 322 of the adjacent connecting members 32 can be completely attached together. For another example, when the connecting member 32 has a rectangular parallelepiped shape, the connecting surface 321 may be located on a lower bottom surface of the connecting member 32, the mating surface 322 may be located on a side surface of the connecting member 32, and the mating surfaces 322 of the adjacent connecting members 32 are supported by each other in a line contact or surface contact manner.

In particular implementations, the connectors 32 may have a regular shape, but the shape or size of the connectors 32 need not be the same. Different connectors 32 may be configured to have different shapes and/or sizes when required for a particular use.

Further, in order to enhance the supporting effect between the connecting members 32 and increase the lifting force of the mirror body 3, the angle formed between the connecting surface 321 and the mating surface 322 is less than or equal to 90 °. Thus, by reasonably setting the distance between the adjacent connecting pieces 32, after the force is applied to the traction piece, the matching surfaces 322 of the adjacent connecting pieces 32 can be completely attached together, so that a better mutual supporting effect is realized, and a larger force is provided when the laryngoscope is lifted.

Further, the connecting assembly further includes a connecting piece (not shown), and both ends of the connecting piece are respectively connected to the connecting surfaces 321 of the adjacent connecting pieces 32. In this embodiment, the edges of the connecting surfaces 321 of the adjacent connecting members 32 are connected to the two ends of the connecting sheet, respectively, so that a certain distance is reserved between the edges of the connecting surfaces 321 of the adjacent connecting members 32, thereby increasing the moving space of the connecting members 32 and facilitating the realization of more flexible control of the bending angle of the endoscope body 3.

In specific implementation, the connecting piece may be made of, for example, silicone, PVC, or rubber, and the connection between the connecting piece and the connecting member 32 may be achieved by plastic welding or gluing.

Further, the connecting assembly further comprises a hinge 9, and the hinge 9 connects the edges of the connecting surfaces 321 of the adjacent connecting members 32. In this embodiment, the edges of the connecting surfaces 321 of the adjacent connecting members 32 are connected to the two ends of the hinge 9, so that the adjacent connecting members 32 can rotate around the hinge 9, thereby increasing the moving space of the connecting members 32 and facilitating the realization of more flexible control of the bending angle of the mirror body 3.

In practice, the hinge 9 may be a rotating shaft or a hinge, for example.

Further, the connecting assembly further comprises a support bar 10. The connecting surface 321 of the connecting member 32 is attached to the supporting bar 10, and the connecting surface 321 of the connecting member 32 is connected to the supporting bar 10. The connecting surface 321 of each connecting element 32 is connected with the surface of the supporting strip 10, the supporting strip 10 can combine a plurality of connecting elements 32 into a whole, and the uplifting force of the mirror body 3 can be further enhanced through the supporting function of the supporting strip 10. The support strip 10 may be, for example, a PVC strip or a rubber strip having a certain flexibility.

In practice, the support strip 10 may extend to the lens member 31 and/or the support member 4 so that the entire body 3 may be formed as a single unit, improving the life of the laryngoscope and providing greater support power.

Further, the connector 32 has a frame-like structure. The frame-like structure of the connector 32 is light in weight, which effectively reduces the weight of the laryngoscope. Moreover, in the process of manufacturing the laryngoscope, the frame type structure can facilitate the pipes and wires to pass through the connecting piece 32, and different accessories can be conveniently arranged on each part of the frame on the connecting piece 32 with the frame type structure, so that the personalized customization of the laryngoscope is realized.

Further, the cross section of the connecting member 32 along the width extension direction of the mirror body 3 is square, rectangular, semicircular, oval or trapezoidal. Different shapes of connector 32 can meet different laryngoscope use requirements.

Further, the connecting member 32 has a trapezoidal cross section along the length extension direction of the mirror body 3, the connecting surface 321 is located on the lower bottom surface of the connecting member 32, and the mating surface 322 is located on the side waist surface of the connecting member 32. When the mirror body 3 with the connecting piece 32 in the structure is bent and deformed, the matching surfaces 322 of the adjacent connecting pieces 32 can be completely attached together, so that the supporting effect is more effective, and a larger lifting force is provided for the mirror body 3.

Further, in order to make the pulling member pull the connecting member 32 more flexibly, the surface where the pulling member is connected to the connecting member 32 is the surface of the connecting member 32 farthest from the connecting surface 321. For example, when the connecting member 32 has a truncated pyramid shape, the connecting surface 321 may be located on a lower bottom surface of the connecting member 32, the mating surface 322 may be located on a side surface of the connecting member 32, and the pulling member is connected to an upper bottom surface of the connecting member 32.

The attachment 32 of the laryngoscope of the invention may have a variety of embodiments:

as shown in FIG. 6, the connector 32 has a frame-like structure, the lower bottom surface of the connector 32 is a connecting surface 321, a pull-cord passage 324 is provided in the wall of a mating surface 322 of the connector 32, a line passage 325 is defined by the rim of the mating surface 322, and a shoulder 323 is connected to the upper bottom surface of the connector 32. The air pipe 7, the suction pipe 8 and the electric wire can pass through the pipeline channel 325.

Alternatively, as shown in fig. 7, the lower bottom surface of the connecting member 32 is a connecting surface 321, the mating surface 322 of the connecting member 32 is provided with a pull rope passage 324 and a pipeline passage 325, and the upper bottom surface of the connecting member 32 is connected with a side wing 323. The air pipe 7, the suction pipe 8 and the electric wire can pass through the pipeline channel 325.

To more clearly illustrate the laryngoscope of the invention, the embodiment shown in fig. 4 is described below as an example:

as shown in the figures, the laryngoscope includes a handle mechanism and a body mechanism.

The mirror handle mechanism comprises a handle 1 and a display unit 2, wherein the display unit 2 is arranged on the handle 1.

The mirror body mechanism comprises a supporting component, a jacket, a vent pipe 7 and a suction pipe 8. The supporting component comprises a lens body 3, a traction piece, a supporting piece 4, a tongue depressor 5 and a driving piece 6, and the outer sleeve is sleeved outside the lens body 3. The lens body 3 includes a lens member 31 and a connecting member. The lens member 31 is provided with a camera 311 and a light source 312. The tongue depressor 5 is provided on the lens piece 31.

The connecting assembly is located between the lens member 31 and the handle 1 and comprises a plurality of connecting members 32 and a support bar 10. The support member 4 is connected at both ends to the handle 1 and to a connecting member 32 closest to the handle 1, respectively. The lens member 31 is connected to one end of the adjacent side wall of the adjacent connecting member 32.

The connecting member 32 has a shape similar to a truncated pyramid, and has rectangular upper and lower bottom surfaces, which have the same length and different widths. The lower bottom surface of the connecting member 32 is a connecting surface 321, and the side surface of the connecting member 32 is a mating surface 322. The connecting surface 321 of each connecting element 32 is located on the same side of the mirror body 3, and the mating surfaces 322 of adjacent connecting elements 32 are oppositely arranged. The connecting member 32 is provided with a side wing 323, and the side wing 323 extends from the edge of the surface (upper bottom surface) of the connecting member 32 opposite to the connecting surface 321 toward a direction away from the mirror body 3.

The connecting surface 321 of the connecting member 32 is attached to the supporting bar 10, the connecting surface 321 of the connecting member 32 is connected to the supporting bar 10, and the supporting bar 10 extends to the lens member 31 and the supporting member 4.

The pulling member is a pulling rope, and the pulling member is two pulling members, one end of the pulling rope is fixedly connected with two different points on one surface of the lens element 31, and the pulling rope passes through the pulling rope channel 324 of the connecting member 32.

The driving piece 6 is an angle trigger and is arranged on the handle 1. The driving member 6 is connected to one end of the pulling rope.

One end opening of the suction tube 8 is positioned on the end surface of the lens piece 31, and the other end opening of the suction tube 8 is positioned on the handle 1. One end opening of the vent pipe 7 is positioned on the end surface of the lens piece 31, and the other end opening of the vent pipe 7 is positioned on the handle 1.

When the laryngoscope of this embodiment is used, insert the mirror body 3 in patient's oral cavity earlier, control according to the bent angle demand and pull the piece, make mirror body 3 take place the bending of different degrees. After the epiglottis is seen by the camera 311 on the lens piece 31, the tongue depressor 5 on the lens piece 31 is inserted into the vallecula, the lens body 3 is bent by the action of the traction piece on the lens body 3, and the epiglottis is lifted to expose the glottis. During exposure of the glottis, the laryngoscope may also be lifted appropriately to assist in exposing the glottis and to increase the oropharyngeal space, thereby facilitating insertion of the endotracheal tube.

Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.

Claims

1. The utility model provides a laryngoscope, its characterized in that, includes mirror handle mechanism and mirror body mechanism, mirror handle mechanism includes handle and display element, display element installs on the handle, mirror body mechanism includes supporting component and overcoat, the supporting component includes the mirror body and draws the piece, the overcoat cover is established outside the mirror body, the mirror body includes lens spare and coupling assembling, be equipped with camera and light source on the lens spare, coupling assembling is located lens spare with between the handle, just coupling assembling includes at least one connecting piece, and is adjacent the one end of the adjacent lateral wall of connecting piece is connected, lens spare with adjacent the one end of the adjacent lateral wall of connecting piece is connected, it is used for control to draw the piece lens spare and/or the position of connecting piece is in order to change the bending angle of mirror body.

2. The laryngoscope as recited in claim 1, wherein the support assembly further comprises a support that connects the handle and the scope body.

3. A laryngoscope according to claim 1, wherein a tongue depressor is also provided on the lens element.

4. The laryngoscope as recited in claim 1, wherein the end face of the camera and the end face of the light source are not coplanar.

5. A laryngoscope according to claim 1, wherein the pulling member is a pulling cord which is connected to the lens member and the connector member.

6. A laryngoscope according to claim 5, wherein the support assembly further comprises an actuating member mounted on the handle, the actuating member being connected to one end of the draw cord.

7. A laryngoscope according to claim 6, wherein the driving member is an angular trigger, a knob or a lever.

8. A laryngoscope according to claim 5, wherein the pull cord is fixedly connected with the lens element, and a pull cord channel is provided on the connecting element, through which the pull cord passes.

9. A laryngoscope according to claim 5, wherein the support assembly comprises at least two of the pulling members, each pulling member being fixedly connected to a different connection location on the lens element; or,

10. The laryngoscope as recited in claim 1, and further comprising a suction tube, wherein one end opening of the suction tube is located on the end face of the lens piece, and the other end opening of the suction tube is located on the handle; and/or

11. A laryngoscope according to claim 1, wherein the attachment member is provided with side wings which extend from an outer surface of the attachment member in a direction away from the body.

12. The laryngoscope as recited in claim 1, wherein the support assembly further comprises a guide channel disposed on an exterior wall surface of the scope body, the guide channel extending along a length of the scope body.

13. A laryngoscope according to any one of claims 1 to 12, wherein the connector members have connecting faces and mating faces, the connecting face of each connector member being located on the same side of the body and being connected adjacent an edge of the connecting face of the connector member, the mating faces of adjacent connector members being oppositely disposed.

14. A laryngoscope according to claim 13, wherein the included angle formed between the attachment surface and the mating surface is less than or equal to 90 °.

15. A laryngoscope according to claim 13, wherein the connection assembly further comprises a connection piece, and both ends of the connection piece are respectively connected with the connection surfaces of the adjacent connection pieces.

16. A laryngoscope according to claim 13, wherein the connection assembly further comprises an articulating member connecting edges of the connection face adjacent the connector.

17. A laryngoscope according to claim 13, wherein the connection assembly further comprises a support strip, the connection face of the connection member is attached to the support strip, and the connection face of the connection member is connected to the support strip.

18. A laryngoscope according to claim 13, wherein the connector has a frame-like structure.

19. A laryngoscope according to claim 13, wherein the cross section of the connector in the direction of the width extension of the body is square, rectangular, semi-circular, oval or trapezoidal.

20. A laryngoscope according to claim 13, wherein the connector is trapezoidal in cross section along the length of the body, the attachment face being located on the underside of the connector and the mating face being located on the lateral waist face of the connector.

21. A laryngoscope according to claim 13, wherein the plane at which the connection between the pulling element and the connection element is located is the plane of the connection element which is furthest from the connection plane.