Disclosure of Invention
In view of the above technical problems, the present invention provides a video laryngoscope, comprising:
the camera shooting assembly and the display assembly are used for multiple times;
The rod body is used for multiple times, the rod body is provided with a fixed extension height a, and the display assembly is arranged at the top end of the rod body;
The flexible connecting wire is connected with the display component after penetrating through the rod body and is provided with an embedded section positioned on the rod body and an exposed section protruding out of the distal end of the rod body, wherein the exposed section is provided with a fixed extension length b;
a disposable laryngoscope cannula having a handle section for grasping by a physician, a blade section for penetrating the patient's mouth, and a transition section formed between the handle section and the blade section, the blade section comprising a base extending from a distal end of the handle section and a tongue depressor at a distal end of the base;
The laryngoscope cannula is internally provided with a channel penetrating the handle section, the transition section and the base, wherein the channel is used for accommodating the rod body and the flexible connecting wire exposed section so that the camera shooting assembly reaches the distal end of the channel of the base;
The laryngoscope satisfies the following conditions:
The extension length h from the proximal end of the rod body to the distal end of the flexible connecting line is approximately equal to the extension length m from the proximal end to the distal end of the channel;
the extending height c of the channel penetrating the handle section is not smaller than the extending length a of the rod body;
The through base channel extends a length e to fit the patient's throat.
In some embodiments of the present invention, a fastening structure is disposed between the handle section and the rod body, and through the fastening structure, the rod body and the exposed section of the flexible connecting wire are inserted into the channel in a removable manner.
In some embodiments of the present invention, the camera assembly includes a camera and a light source disposed adjacent to the camera.
In some embodiments of the present invention, the fastening structure is realized by that the inner wall of the handle section forms a fastening groove, and the outer wall of the rod body forms an elastic protrusion matched with the fastening groove.
In some embodiments of the invention, the inlet of the channel forms a flared portion, the periphery of which forms an outwardly facing flange.
In some embodiments of the invention, the flexible connection wire comprises a connection wire and a hose surrounding the connection wire, through which hose the flexible connection wire can be bent within the laryngoscope insertion tube.
In some embodiments of the invention, the laryngoscope cannula is configured as a different gauge laryngoscope cannula by varying the length e of extension through the base channel, the different gauge laryngoscope cannula being adapted for the same gauge shaft and flexible connection line.
In some embodiments of the invention, the channel cross-section through the handle segment is rectangular.
In some embodiments of the invention, the laryngoscope cannula is an integrally formed transparent tube.
The invention also provides a laryngoscope intubation tube.
Compared with the prior art, the invention has the following beneficial effects:
The video laryngoscope provided by the invention can realize comprehensive protection of the rod body, and eliminates the risk of cross infection between patients or between patients and doctors;
In addition, the invention provides the rod body with the determined specification, the flexible connecting wire and the laryngoscope intubation with different specifications, and in the use process, the laryngoscope intubation with different specifications can be adapted without adjusting the height of the rod body, so that a doctor can conveniently and quickly replace the laryngoscope intubation.
Furthermore, the design of the top end of the laryngoscope cannula provided by the invention has the function of preventing hands of a doctor from sliding to the top end of the rod body, so that cross infection is further avoided.
Detailed Description
The invention or the technical scheme of the invention is further specifically described below through specific embodiments and with reference to the accompanying drawings;
in the description of the present application, it should be understood that the terms "near," "far," "top," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, and are merely for convenience in describing the present application and simplifying the description, rather than indicating or implying that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application, and that the near end should be construed as the portion near the operator (doctor) and the far end should be construed as the portion far from the doctor.
In the description of the present invention, it should be noted that, unless otherwise specified and defined, the terms "mounted" and "connected" are to be construed broadly, and may be, for example, mechanical or electrical, or may be internal to two elements or may be directly or indirectly connected through an intermediate medium, and the specific meaning of the terms may be understood by those skilled in the art according to circumstances.
As shown in fig. 1, the invention provides a video laryngoscope which comprises a multi-use assembly (refer to fig. 2) and a disposable laryngoscope intubation, wherein the multi-use assembly comprises a camera shooting assembly 4, a display assembly 1, a multi-use rod body 2 and a multi-use flexible connecting wire, the multi-use rod body, the multi-use flexible connecting wire and the camera shooting assembly are inserted into the laryngoscope intubation in a removable way, the display assembly is movably arranged at the top end of the rod body, a doctor holds a handle section of the laryngoscope intubation by hands to enable the blade section of the laryngoscope intubation to be inserted into the throat of a patient in the whole process, and the rod body and the flexible connecting wire are arranged inside the laryngoscope intubation, except that the outer side of the laryngoscope intubation is contacted with the doctor and the patient, so that cross infection is effectively avoided.
Specifically, the invention adopts the following structure:
the invention provides a camera shooting assembly 4 and a display assembly 1 which are used repeatedly, as shown in fig. 1 and 2, wherein the camera shooting assembly comprises a camera and a light source arranged on the adjacent side of the camera, and in the embodiment, the light source is an LED lamp arranged on the peripheral side of the camera 4;
The rod body 2 is provided with a fixed extension height a, the fixed extension height provided by the invention means that the rod body is provided with a fixed extension height, a telescopic structure is not required to be adopted for adjustment, and a doctor is not required to be provided with rod bodies with different extension heights, in the operation process, the doctor only needs one rod body, the rod body is not required to be replaced, the operation is rapid and convenient, the working efficiency of the doctor is improved, the display component 1 is arranged at the proximal end of the rod body, and preferably, the display is pivoted in the top end of the rod body 2 through the mounting seat 6 and the rotary joint 7, so that the doctor can change the angle of the display 1 to adapt to the visual field direction of the doctor.
The flexible connecting wire 5 is used repeatedly, the bendable property of the flexible connecting wire 5 promotes the flexible connecting wire 5 to bend in the nonlinear laryngoscope intubation 3, so that the laryngoscope intubation 3 with different specifications can be matched with the laryngoscope intubation 3 with the same specification, the flexible connecting wire 5 passes through the laryngoscope intubation 2 and is connected with the display component 1, the flexible connecting wire is provided with an embedded section (not shown) positioned on the laryngoscope intubation 2 and an exposed section 51 protruding out of the distal end of the laryngoscope intubation, the exposed section 51 is provided with a fixed extension length b, and the camera component 4 is arranged at the distal end of the exposed section 51;
A single use laryngoscope blade 3 as shown in figures 3 and 4 having a handle section 31, a blade section 32 and a transition section 33 formed between the handle section 31 and blade section 32, the handle section 31 for grasping by a physician, the transition section 33 being an arcuate transition section, the blade section 32 for penetrating the patient's mouth, the blade section 32 comprising a base 321 extending from the distal end of the handle section and a tongue depressor 322 at the distal end of the base 321;
The laryngoscope cannula forms inside the channel 7 through the handle section 31, the transition section 32 and the base 321, the channel comprises a channel 71 through the handle section, a channel 72 through the transition section and a channel 73 through the base, the distal end 323 of the base 321 is sealed by transparent material, the rod body 2 and the flexible connecting wire exposed section 51 are inserted in the channel in a removable way, at this time, the camera assembly 4 can reach the distal end of the base, and the camera assembly is accommodated inside the channel because the distal end 323 of the base is sealed by transparent material, namely, the multi-use assembly cannot be contacted with a patient; in the laryngoscope provided by the invention, the extension length from the proximal end of the rod body to the distal end of the flexible connecting wire is h, the extension length of the channel from the inlet end to the closed end is m, the extension height of the rod body is a, the extension length of the exposed section of the flexible connecting wire is b, the extension height of the channel penetrating through the handle section is c, the extension length of the channel penetrating through the transition section is d, and the extension length of the channel penetrating through the base is e, wherein h=a+b, and m=c+d+e;
In practice, regarding the size of the laryngoscope cannula, there are differences between the size of the infant, child and adult laryngoscopes, the medical staff can choose the proper size of the laryngoscope blade according to the condition of the patient, thus the specification size of the blade segment is different, for example, the laryngoscope provided in the prior art is fixed by the handle part, but the blade segment has three specifications of large, medium and small, if the extending length of the inner channel of the laryngoscope cannula designed according to the thought is changed, the height of the rod body is correspondingly required to be adjusted to adapt to the laryngoscope cannula, the operation is inconvenient, based on the invention, the invention considers that the extending height of the handle segment used by the doctor is not required to be strictly limited as long as the doctor can hold, however, the specification of the blade segment is required to be strictly configured into different specifications, and further the specification of the blade segment determines the extending length of the through base channel, thus the extending length e of the through base channel provided by the invention is suitable for the size of the throat of the patient, and the embodiment of the laryngoscope A2, A3 and A4 provided by the invention has the parameters shown in detail in table 1:
TABLE 1
| Specification of specification |
Integral extension length |
The extension height of the channel through the handle segment is c |
The extension length of the channel penetrating through the transition section is d |
The extension length of the channel penetrating the base is e |
| Laryngoscope cannula A1 |
m |
c1 |
d1 |
e1 |
| Laryngoscope cannula A2 |
m |
c2 |
d2 |
e2 |
| Laryngoscope cannula A3 |
m |
c3 |
d3 |
e3 |
It can be seen from table 1 that the laryngoscope intubation tube is configured as laryngoscope intubation of different specifications by changing the extension length e of the channel penetrating the base, the laryngoscope intubation of different specifications is suitable for the rod body of the same specification and the flexible connecting wire, meanwhile, the whole extension length m of the laryngoscope intubation tube needs to be consistent with the extension length h from the proximal end of the rod body to the distal end of the flexible connecting wire in consideration of the adaptation of the laryngoscope intubation tube, and therefore, the extension height c of the channel of the handle section needs to be lengthened or reduced.
As described above, the laryngoscope cannula provided by the invention meets the following conditions:
The extension length h from the proximal end of the rod body to the distal end of the flexible connecting wire is approximately equal to the extension length m from the inlet end to the closed end of the channel, so that the exposed sections of the rod body and the flexible connecting wire have fixed extension heights, no matter how the extension length e of the channel of the laryngoscope intubation through the base is changed to be suitable for different laryngoscope structures, as long as the whole extension length m of the laryngoscope intubation is approximately equal to h, the rod body and the flexible connecting wire assembly provided by the invention can be adopted, the exposed sections of the rod body and the flexible connecting wire can be inserted into the channel in a pulling mode, and the camera shooting assembly can reach the inner side of the distal end of the blade, so that the trachea and the glottis can be clearly exposed when the laryngoscope intubation is carried out, and the laryngoscope intubation is smooth and effective.
Further, considering that the rod body needs to be accommodated in the channel, the extending height c of the channel penetrating the handle section is limited by the extending length a of the rod body, because if the extending height c of the channel penetrating the handle section is smaller than the extending length a of the rod body, the rod body cannot fully extend into the channel due to the blocking effect of the transition section and the blade section, that is, the positioning fit of the laryngoscope intubation tube and the rod body cannot be realized, therefore, the laryngoscope provided by the invention also needs to meet the following conditions that the extending height c of the channel penetrating the handle section is not smaller than the extending length a of the rod body,
The invention provides a clamping structure (21,311) arranged between the inner wall of a handle section and a rod body, and the rod body and the exposed section of a flexible connecting wire can be inserted into a channel in a pulling-out way through the clamping structure; in the present invention, the inner wall of the handle section 31 forms a clamping groove 311, the outer wall of the rod body 2 forms an elastic convex column 21 matched with the clamping groove, more specifically, in the present embodiment, the outer wall of the rod body forms two opposite spring beads 21, the inner wall of the handle section forms a clamping groove 311 matched with the two spring beads in a positioning way, so that a doctor can quickly pull out or insert the rod body and the flexible connecting wire, and the rod body is firmly positioned in the channel.
In other embodiments of the present invention, a flared portion 34 is formed at the entrance of the channel, so that a doctor can insert the rod into the channel through the flared portion 34 quickly, avoiding the situation that the rod cannot be inserted quickly at the entrance of the channel and the rod is approximately similar in size, and in addition, a flange 341 facing to the outside is formed at the periphery of the flared portion, so that the flange prevents the doctor's hand from contacting the mounting seat 23 and the display assembly 1 at the upper end of the rod due to misoperation or sliding by hand, thereby causing cross infection.
In other embodiments of the invention, the flexible connection wire comprises a connection wire and a hose surrounding the connection wire, and the flexible connection wire can be bent in the laryngoscope intubation tube through the hose so as to adapt to laryngoscope intubation tubes with different specifications.
In some embodiments of the invention, the cross-section of the passage through the handle section is rectangular, so that rotation of the shaft within the passage is further prevented.
In addition, in some embodiments, the laryngoscope cannula is an integrally formed transparent tube, and it is understood that the laryngoscope cannula is open at one end and closed at the other end, and in particular, the laryngoscope cannula can be made of a rigid plastic material.
The laryngoscope provided by the invention has the working process that:
The invention provides a doctor with a rod body, a flexible connecting wire, a display assembly and a camera assembly which are of the same specification, wherein the rod body, the flexible connecting wire, the display assembly and the camera assembly can be repeatedly used for a plurality of times;
The invention also provides doctors with laryngoscope cannulas with various specifications (large, medium and small), and the laryngoscope cannulas are disposable products;
During operation, a doctor only needs to select a laryngoscope intubation of corresponding specification according to the condition of a patient, then the rod body, the flexible connecting wire and the camera shooting assembly are directly inserted into the laryngoscope intubation of any specification, so that the treatment process can be started, the process avoids the need of matching the rod body with the laryngoscope intubation specification, the height adjustment of the rod body is also avoided, the operation is rapid and convenient, and the treatment cost is greatly reduced.