ES2524654B1 - Video-laryngoscopic blade with connection to smartphones - Google Patents

Abstract

Video-laryngoscopic blade with connection to smartphones. # This leg comprises a coupling element (5) for conventional laryngoscope handle; means for guiding an intubation bugie (3); an anatomical blade (1) of a width greater than its thickness; a guide tunnel (2) of semi-rigid plastic, suitable for the passage of a bugie (3), whose guide tunnel (2) runs along the underside of the blade (1), centered with respect to its medial axis and which has an opening or longitudinal cut in its entire right side (21); an image capture system (6) connected to connecting cables (64) that run inside the blade and that emerge from its proximal end, ending in a connector (65) suitable for connection to a smartphone or similar, provided of a software application and a screen suitable for processing and displaying live images captured by the camera (61).

Description

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DESCRIPTION

Video-laryngoscopic blade with connection to smartphones Object of the invention.

It consists of a video-laryngoscopic blade with connection to smartphones; said blade comprising a coupling element for conventional laryngoscope handle and means for guiding a standard tracheal intuition bugie probe.

State of the art.

Currently there are different video-laryngoscopic blades used for the intuition of patients and that present certain limitations in their operation.

Some of the existing background and the inconveniences detected in its utilization are mentioned below.

- PENTAX AWS®: You need at least an 18mm oral opening to insert the device. According to studies, it requires a bugie for the correct addressing of the tube and success in intubation. You always have to fit the epiglottis for complete visualization of the glottic structures.

- AIRTRAQ®: You need a minimum 20mm oral opening to insert the device. The rupture of the tube ball is possible due to friction during its sliding. Sometimes it requires a bugie for proper re-addressing of the tracheal tube. There is a risk of accidental extubation when the device is removed from the oral cavity.

- AMBU, KING VISON®: Needs minimum oral opening of 18mm or 13mm depending on the model. You need the bugie probe sometimes to intubate successfully. You need to preform the stylet with a 70 ° angle to direct it towards the vocal cords. This fact entails the problem of collision of the tracheal tube with the anterior tracheal rings during its advance.

- MCGRATH GLIDESCOPE®: They need the use of bugie probes in 76% and 60% respectively to intubate successfully.

- C-MAC®: Acute concave angulation of the blade, hinders its oral introduction in patients with limitation of oral opening or with short neck and prominent pectorals. The tube must be preformed with a stylet with an angle> 35 °, which can make it difficult to advance the tube into the trachea by colliding with the anterior tracheal rings.

- VivicTraC®: Minimum oral opening of 13 mm to insert the device. If you intuited with the bugie, it does not allow the visualization of the passage of the strings live. There is a risk of extubation during the maneuver of removal of the apparatus from the mouth.

The technical problem that arises is the development of a video-laryngoscopic blade with connection to smartphones that allows to eliminate the inconveniences of the aforementioned background, and reduce the difficulty in the technique of tracheal intubation.

Description of the invention.

The video-laryngoscopic blade with connection to smartphones object of the invention has features aimed at providing different advantages of use; and especially a simple and more practical design to present the blade a thin and slender profile that facilitates its

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introduction into the oral cavity being its width less than its thickness.

This feature allows the introduction of the blade into oral cavities with a small mouth opening, up to 9 millimeters.

The characteristics of the blade also allow it to be introduced into the oral cavity without the handle in those patients with short neck and prominent pectorals, which greatly facilitates the procedure.

Another objective of the invention is to make a digital and non-optical or indirect image capture, eliminating the incorporation of mirrors or other similar elements, or of optical fiber.

Yet another objective of the invention is to facilitate intubation through a guide system, having a mobile tunnel-guide, which allows optimizing the orientation of the tip of the bugie probe towards the vocal cords, and which also allows anesthetic instillation local pressure to anesthetize the vocal cords easily.

This tunnel guide is formed in a semi-rigid plastic and provided with a longitudinal opening in its entire right side. Said tunnel guide allows the introduction of standard bugie probes through the proximal entry hole and exit through its exit hole at the distal end.

In turn, this tunnel-guide allows, once the bugie probe is inside, the tracheal tube can slide and guide into the trachea, releasing the bugie probe through the longitudinal opening, at the same time as the tracheal tube slides into the airway. In such a way that once the intubation is performed, the tracheal tube is completely released from the tunnel guide and also detached from the device, which facilitates the removal of the blade from the mouth, eliminating the risk of dragging the tracheal tube with it and accidentally extubate the patient.

The laryngoscope tunnel-guide system allows tracheal tubes of variable caliber from 5 mm to be directed. up to 9 mm with total ease.

The tunnel-guide is anchored to the body of the blade by means of a mobile coupling, type "T", which allows the anterior or posterior sliding of the said tunnel-guide and the optimization of the working angle to direct the bugie probe towards the passage of vocal chords.

The blade has at its proximal end a coupling element suitable for coupling a conventional laryngoscope handle according to International Standard IS0 7376.

This video-laryngoscopic blade has an image and guided video capture system, located at the distal end of it. This image capture system is useful for live visualization of the laryngeal structures and to guide the bugie probe and / or the tracheal tube through the vocal cords.

This image capture system comprises a video camera and a lighting element, LED type, properly positioned to focus the glottic structures and obtain a propitious image of them. Both elements are integrated in the same watertight compartment so that the heat itself emitted by the LED or lighting element warms the lens at a temperature between 37 ° C and 45 ° C, avoiding the creation of fog or condensation of water in the camera lens, allowing and

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improving visualization.

This image capture system is connected to connection cables that run through the inside of the blade and at its proximal end adopt a wiring configuration with a connector suitable for connection to a smartphone or other similar element provided with a screen digital for live visualization of the image captured by the camera.

In this invention, the creation and the provision of a suitable software application to be installed on any Smartphone and allow the visualization of live images, incorporating said application incorporating a digital image processing and improvement system, is provided.

The aforementioned image capture system is located on the underside of the blade, with a maximum displacement of 7mm.

The tip of the blade and the optical system focuses at 275 ° in an anti-clockwise direction facilitating the visualization of the laryngeal structures and the direction of the bugie towards the vocal cords.

The laryngoscopic blade is useful for any tracheal or naso tracheal gold intubation, being especially useful for difficult intubations (Cormack Ill - IV). It is also very useful to intubate patients with limited cervical extension, with cervical fractures and immobilization, with limited mobility of the temporomandibular joint or with retrognathia. To visualize the vocal cords, the vallecula or the epiglottis can be fitted.

Other advantages of the video-laryngoscopic blade object of the invention determined by the characteristics mentioned above are: simple and self-taught intubation system, using bugie with Seldinger system; great portability, availability and affordable; having a lower economic cost to do without digital display; You do not need large preparations prior to intubation; it allows utilization for nasotracheal intubations; less traumatic intuition due to the slim profile of the blade; This can be introduced into the oral cavity without the handle and facilitates maneuvering in obese patients with prominent thorax; its design avoids the risk of breaking the tracheal tube balloon; It does not need to preform the bugie and prevents collision with the anterior tracheal rings during the advancement of the tracheal tube; it allows a more comfortable position of the doctor during the maneuver; It is easy to use by medical / paramedical personnel not specifically trained for tracheal intubation technique; it also allows intubar without using the tunnel-gluttony and naso tracheal intubations, and finally; for the technique, it does not need alignment of the oral-farlngeo-larlngeo axes.

Description of the figures.

To complement the description that is being made and in order to facilitate the understanding of the features of the invention, a set of drawings is attached to the present specification in which, with an illustrative and non-limiting nature, the following has been represented:

- Figure 1 shows a perspective view of an example of realization of the video-laryngoscopic blade with connection to smartphones object of the invention;

- Figure 2 shows a view of the analogous blade to the previous one during the introduction of the bugie by the tunnel-glutton;

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- Figure 3 shows a view of the analogous blade to the previous ones during the passage of an intubation tube over the bugie, causing its release from the tunnel-glutton;

- Figures 4a, 4b and 4c show schematically sectioned the assembly of the tunnel-glutton, with the possibility of linear displacement on an anchor type "T", during the passage of the bugie and during the assembly of the intuition tube on said bugie releasing it from tunnel-gluttony;

- Figure 5 shows a profile view of the proximal end of the blade in which the connection element for a conventional laryngoscope handle can be observed; Y

- Figure 6 schematically represents a front view of the distal end of the blade in which the image capture system can be observed with a camera and an LED integrated in a single sealed compartment, and a protective lens that closes the space.

Preferred embodiment of the invention.

The video-laryngoscopic blade with connection to smartphones has an anatomically shaped blade (1) of a width greater than its thickness and has a semi-rigid plastic tunnel (2) that runs on its lower face, centered on its axis medial and that presents a longitudinal opening or cut in all its extension of the right side.

Said blade (1) can be formed in disposable polycarbonate, or in a resterilizable metal.

This tunnel-glutton (2) has a minimum internal diameter of 5 millimeters and an external diameter of 7 millimeters allowing the introduction along of it of a bugie (3) as seen in Figures 2 and 3.

Once the bugie (3) has been introduced, when an intubation tube (4) passes over it, as clearly shown in Figure 3, its release from the tunnel-glutton (2) occurs at the same time through the longitudinal opening or cutting (21) subsequently allowing the extraction of the blade (1) without risk of accidental extubation.

As shown schematically in Figures 4a, 4b and 4c the tunnel-glutton (2) is mounted on the blade (1) by means of a mobile coupling (22) that allows a certain anterior or posterior sliding of the tunnel-glutton (2).

Figures 4b and 4c show the section of the tunnel-glutton (2) during the passage of the bugie (3) and the tube (4) on said bugie (3), respectively.

As can be seen in figure 5, the blade (1) incorporates at its proximal end a coupling element (5) for a conventional handle that has a coupling groove (51) oriented towards the front face of the blade (1) and at a 90 ° angle to the longitudinal axis of the blade (1). The maximum height of the set is 15 cm. including the hitch element (5).

In a specific embodiment of the invention, the distal tip (11) of the blade (1) has a slightly ascending inclination with a displacement of about 2 mm in an extreme section, specifically in its last 3 cm. respect to the horizontal. This provision is intended to improve the visualization and approach angle of the bugie (3) towards the vocal cords.

This video-laryngoscopic blade comprises an image capture system, referenced in

its assembly as (6) and comprising a camera (61) and a lighting element (62) type LED integrated in the same compartment (63) sealed so that the heat given off by said LED or lighting element (62) performs the heating of the camera lens (61) at a temperature between 37 ° C and less than 45 ° C, avoiding the creation of water fog or condensation in the lens of said camera (61).

The optical group of said image capture system (6) is connected to connecting cables (64) that run inside the blade (1) and that emerge from its proximal end, ending in a connector (65) suitable for connection to a smartphone or other similar element (not shown) provided with a suitable software application and screen 10 for the processing and live visualization of the images captured by the camera (61).

Once the nature of the invention has been sufficiently described, as well as an example of preferred realization, it is stated to the appropriate effects that the materials, shape, size and disposition of the described elements may be modified, provided that this does not imply alteration of the essential characteristics of the invention that are claimed below.

Claims (6)

5 10 fifteen twenty 25 30 ES 2 524 654 A1 1. - Video-laryngoscopic blade with connection to smartphones; said shovel presenting a coupling element (5) for conventional laryngoscope handle according to International Standard ISO 7376 and means for guiding an intubation bugie (3); characterized in that it comprises: an anatomical blade (1) of a width greater than its thickness; a tunnel-glutton (2) of semi-rigid plastic, suitable for the passage of a bugie (3), whose tunnel-glutton (2) runs along the underside of the blade (1), centered with respect to its medial axis and presenting an opening or longitudinal cut in its entire right side (21); an image capture system (6), comprising a camera (61) and a LED type lighting element (62) integrated in the same sealed compartment (63); said image capture system (6) being connected to connection cables (64) that run inside the blade (1) and that emerge from its proximal end, ending in a connector (65) suitable for connection to a smartphone or similar provided with a software application and a screen suitable for the processing and live visualization of the images captured by the camera (61). 2. - Shovel, according to claim 1, characterized in that the tunnel-glutton (2) is mounted on the blade (1) by means of a mobile coupling (22) that allows a certain anterior or posterior sliding of said tunnel-glutton (2) . 3. - Shovel, according to claim 1, characterized in that the coupling element (5) has a coupling groove (51) oriented towards the front face of the blade (1) and at a 90 ° angle to the longitudinal axis of the blade (1) and is suitable for coupling a conventional handle for laryngoscope according to International Standard IS0 7376. 4. - Shovel, according to claim 1, characterized in that the blade (1) is made of polycarbonate or resterilizable metal. 5. - Shovel, according to claim 1, characterized in that the distal tip (11) of the blade (1) has a slightly ascending inclination with a displacement of about 2 mm. respect to the horizontal. 6. - Shovel, according to claim 1, characterized in that the tunnel-glutton (2) has a minimum internal diameter of 5 millimeters and an external diameter of 7 millimeters.