TWI572311B - Endoscopy device - Google Patents

Description

Throat mirror device

The present invention relates to a laryngoscope device, and more particularly to a laryngoscope that provides an airway.

Existing surgical and endoscopic diagnostic procedures must be performed in an invasive device or observation device into the patient's digestive tract. For example, a laryngoscope passes through the patient's mouth to the throat and down to the stomach and duodenum. One end of the laryngoscope includes a light and a visual device such as a lens and may include a working channel for the operator to pass through other devices. When performing a throat examination, the patient is usually given local anesthesia or a sedative. A mouth guard protector is placed between the patient's teeth to allow the laryngoscope to pass, and the patient must swallow the distal/lead end of the laryngoscope. When the patient swallows the distal end of the laryngoscope, the operator must manually push the device to the stomach and duodenum.

Many problems arise when a blindfold or visual device is blindly inserted into the patient's esophagus. First, there are some patients with local anesthesia and sedatives that may cause complications of cardiopulmonary function including arrhythmia, respiratory arrest, myocardial infarction, stroke, and even death (page 7, upper gastrointestinal and throat complications, Riley and Alderson, BSG Guidelines in Gastroenterology, November 2006). In addition, the upper gastrointestinal throat may cause infection, perforation or bleeding. In particular, perforation can occur in the throat or throat of a patient, usually in pathology. Location or results of a blind insertion device (pages 7-8, Upper Gastrointestinal Complications, Riley and Alderson, BSG Guidelines in Gastroenterology, November 2006). Furthermore, the time required for a conventional therapeutic gastrointestinal endoscopy procedure is comparable to that of a diagnostic endoscopic examination schedule. In many cases, the patient feels uncomfortable, and a large amount of sedative is required in combination with intravenous pain relief, which may cause cardiac respiratory complications (page 8, upper gastrointestinal and throat complications, Riley and Alderson, BSG Guidelines in Gastroenterology, November 2006).

In addition, after performing the above upper gastrointestinal throat treatment, the patient may pass It is slightly uncomfortable in the throat and abdomen. Despite these minor complaints, a related study found that about 2% of patients seek medical advice and some of them must be hospitalized (page 7, Upper Gastrointestinal Complications, Riley and Alderson, BSG Guidelines in Gastroenterology, November 2006).

Today's throat mirrors are usually without the use of guiding devices Being placed in the throat of the patient. It is usually caused by general anesthesia because it will interfere with and hinder the patient's breathing because there is no air or little to provide. Therefore, in this case, it is important that the diagnostic procedure must be performed very quickly afterwards to reduce the insertion time of the laryngoscope. Otherwise, you may pay a higher price because the information obtained by the examination is insufficient to endanger the patient.

Conventional catheters provide a path of movement to a laryngoscope into the body. The laryngoscope is guided into the patient's body relative to the guiding device as disclosed in the patents EP2368481 and EP2368483.

Artificial airway devices such as throat mask airway devices are known to be useful Set, applied to the unconscious patient to establish the airway. Forming a throat mask in its basic form The airway device comprises an airway tube and a cover, one connected to the airway tube. Mask with A peripheral composition, usually a conventional "cuff", can be secured or formed therein. The space is actually formed behind the throat to form a portion enclosed in the throat intake pipe. The cuff is inflatable and mostly surrounds a hollow inner surface or a mask lumen and at least one airway tube opening into the cavity. One of the applications of U.S. Patent No. 4,509,514 is to describe a throat mask airway device. It is relatively easy to insert a throat mask into a patient to establish an airway. At the same time, the throat mask airway device is a device that allows for an error, and the airway can be established even when the insertion is unsuitable. Therefore, the throat mask airway device is generally considered a lifesaving device. At the same time, the throat mask airway device only slightly controls the patient's head and neck and chin. The throat mask airway device also provides the patient's lung exchange cycle without touching the sensitive tracheal lining and the airway size is usually larger than the applied endotracheal tube. At the same time, the airway device of the throat mask does not interfere with coughing like the endotracheal tube. Due to the above advantages, the use has increased in recent years.

During the diagnosis of the throat, a thin and flexible laryngoscope device is usually used for the examination of the digestive tract of the patient. This device is not suitable for use with a throat mask airway device because the mask will limit the movement of the laryngoscope within the patient. In addition, the throat mask airway device plus the laryngoscope is more difficult for the user because the throat mirror may interfere with the insertion of the throat mask airway device into the patient's throat, and thus is more difficult than merely inserting the mask itself.

One of the objects of the present invention is to find a solution to the above problems.

According to one aspect of the present invention, a laryngoscope device is provided for applying a laryngoscope, comprising: at least one airway tube and a cover at one end of the airway tube and the mask having a distal end, a proximal end and a periphery The fixation or connection is actually located behind the patient's throat to form a closed space around the throat air intake and surrounding The device is formed around a hollow internal space or a mask inner cavity and at least one airway tube opening enters the mask inner cavity and the device further comprises a catheter, which serves as a passage for the throat mirror to enter the esophagus of the patient when the mask is in place.

According to the present invention, it is possible to provide a combination of establishing an airway in a patient Benefits and protect the airway from airway insufficiency or vomiting due to throat diagnosis. The device of the present invention thus facilitates safe and correct insertion into the patient's throat while establishing an airway within the patient.

Preferably, the device of the present invention comprises: a proximal end and a distal end, wherein A spindle is located between and wherein the conduit provides an angle to compensate for a centerline relative to the spindle of the device. The catheter has an angle that compensates for the midline such that the catheter and airway tube are positioned within the patient's throat, increasing the airway to gain space in the throat and avoiding airway obstruction. Typically the cuff and airway tube are disposed adjacent the midline portion relative to the device spindle.

Typically, the device of the present invention is used to reduce the inner wall of the catheter. The frictional contact between the face and the inner laryngoscope allows the laryngoscope to be inserted into the catheter and the patient's throat.

Preferably, the catheter has a larger hole diameter relative to the airway tube. The diameter is usually between 5 and 25 mm, more commonly between 10 and 20 mm, and most typically 15 mm. The standard for catheter selection usually depends on the size of the laryngoscope. The diameter of the catheter allows the laryngoscope to pass through the catheter channel. The catheter thus forms a "operating channel" to allow the surgeon to see the patient's upper digestive tract path. In addition, the diameter of the catheter used may vary depending on the patient's body configuration. Preferably, the axial wall thickness of the conduit is between 1 and 2 mm.

Preferably, the conduit includes a plurality of channels formed in the wall to provide It is preferably rigid and flexible to assist in the insertion of the device into the patient.

In a preferred embodiment, the catheter is made of silicone. In another reality In the example, a plastic material such as PVC or rubber. Preferably, the catheter hardness is between 60 and 70 degrees. The advantage of this hardness is that the force required to insert the patient's throat is small.

Generally, the throat mirror device of the present invention is inserted into a patient's throat food. Road. Due to the narrow bones in this area, careful insertion of the device is necessary. The laryngoscope device of the present invention is inserted into the patient's upper esophagus by the top of the cuff to provide a guide insertion of the device. Furthermore, the distal end of the device is flexible to assist in the curvature of the patient's throat and to avoid injury to the patient's throat.

The use of the laryngoscope combination device of the present invention is safe to use the laryngoscope itself alone and to facilitate the laryngoscope to penetrate the patient's throat for a longer period of time.

Typically, the perimeter composition is inflatable and is preferably an inflatable cuff. This cuff is usually attached and attached to the actual space behind the throat to close the throat inlet. Usually the cuff extends from the proximal end to the distal end. Preferably, the mask is substantially downwardly convex from the proximal end to the distal end. Preferably, the mask comprises a back panel having a back and an abdomen, the back being substantially smooth and having a curved curvature across the width. At the same time, preferably, the back surface of the airway tube corresponds to the curvature across the width of the backing plate. These can help simplify the insertion of the mask.

The airway tube preferably has a material that is more rigid than the body of the mask. Typically, the airway tube has a smaller diameter than the catheter to provide more space for the catheter when inserted into the patient. Preferably, the airway tube is reinforced to avoid tangling in the tube. The airway tube and mask body preferably comprise a plastic material. In one embodiment, the airway tube can comprise a silicone material.

In some embodiments, the airway tube can include a connecting unit in the present Near the end. The connection unit provides connection to the air duct to the air supply. In a preferred embodiment, the airway tube does not include the attachment means at the proximal end itself. Advantageously, no proximal connection means assists insertion of the airway tube into the patient's throat at the proximal end of the airway tube.

In a preferred embodiment, the length of use of the catheter is extended from the distal end of the mask. Stretch through the patient's mouth and out between the teeth. Advantageously, the catheter and the laryngoscope can be inserted into the patient's mouth.

In an embodiment, the airway tube has a relatively soft wall adjacent to the wall In the patient's teeth. Preferably, a nip is formed in the relatively soft wall. The occlusal zone has a relatively soft wall that provides protection to the patient's teeth. In another embodiment, the occlusal region is provided on the catheter. The provision of the occlusal zone to the airway tube or catheter has the added advantage of preventing the passage of the passage established by each component. For the avoidance of doubt, the laryngoscope device may or may not have the tool to remove the throat material.

Preferably, the distal end of the catheter is adjacent to the distal end of the cuff. Better, guide The distal end of the tube provides an angle a relative to the horizontal plane (where the horizontal plane is perpendicular to the device spindle when the device is substantially linearly constructed). Typically, the angle a is between 10 and 15 degrees and preferably 45 degrees with respect to the horizontal, and preferably the angle a is an acute angle. The distal end of the catheter is provided at an angle a relative to the horizontal to aid in insertion of the device into the patient. Preferably, the larger the angle a relative to the horizontal plane, the easier the device is to be inserted into the patient. Preferably, the distal end of the catheter does not extend over the distal end of the cuff, so that it does not interfere with the guidance provided by the cuff top when inserted. Tool (located at the far end of the cuff).

Usually the catheter is placed in front view, extending relative to the device master The left or right direction of the axis. Advantageously, the direction of projection of the catheter relative to the main axis is selected to operate the laryngoscope device as a left or right hand.

In a preferred embodiment, a slit is provided in the cuff. Preferably, A slit is provided at the distal end of the cuff. Advantageously, the provision of a gap within the cuff facilitates attachment of the catheter to the cuff. In addition, a slit is provided in the cuff to assist the laryngoscope to view the patient's upper gastrointestinal tract when the device is inserted into the catheter.

The catheter usually consists of a straight line or a linear line. In another implementation For example, the catheter will be made into a curve that follows the patient's airway shape.

In a preferred embodiment, the throat mirror includes a catheter and an airway The tube and the catheter and the airway tube are disposed apart from each other. This has the advantage of allowing the airway to be established when the device is inserted and ensuring that the airway does not cause backflow or vomiting due to insertion into the laryngoscope.

In another embodiment, the airway tube and the catheter are connected to each other, In an embodiment, it is necessary for the components to be separated from one another in a portion of the device to allow the airway to establish when the device is inserted and to ensure that the airway does not cause backflow or vomiting due to insertion into the laryngoscope.

The above described objects, features and advantages of the present invention will become more apparent from the description of the appended claims.

1‧‧‧ device

1a‧‧‧ proximal end

1b‧‧‧Remote

2‧‧‧airway tube

2a‧‧‧ proximal end

2b‧‧‧Remote

3‧‧‧ mask

4‧‧‧ distal

5‧‧‧ Near end

6‧‧‧Cuff device

6a‧‧‧ proximal end

6b‧‧‧Remote

7‧‧‧ lumen

8‧‧‧ catheter

8a‧‧‧ proximal end

8b‧‧‧Remote

9‧‧‧ Backplane

11‧‧‧ Hole

12‧‧‧Connector

13‧‧‧Network

14‧‧‧Blowing line

14a‧‧‧ proximal end

14b‧‧‧Remote

16‧‧‧Check valve

17‧‧‧biting area

18‧‧‧biting area

18a‧‧‧ occlusal surface

18b‧‧‧ occlusal surface

19a‧‧‧ proximal end

19b‧‧‧Remote

19c‧‧‧Ladder

20‧‧‧ plane

20a‧‧‧ hole

20b‧‧‧ hole

21‧‧‧ inner surface

22‧‧‧Edge

23‧‧‧ channel

24‧‧‧ Curved fixed surface

24a‧‧‧

25‧‧‧End

26‧‧‧ Tools

27‧‧‧Export

28‧‧·Throat mirror

2/8‧‧‧ Airway tube catheter composition

‧‧‧‧ angle

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a front view showing a part of the apparatus of the present invention; Fig. 2 is a bottom view showing the apparatus of the present invention; Fig. 3 is a plan view showing the apparatus of the present invention; and Fig. 4 is a sectional view showing the apparatus of the apparatus of the present invention; Figure 7 is a side view of the present invention as viewed from the direction of the airway tube; Figure 6 is a view showing the end of the device of Figure 5 of the present invention, showing the catheter relative to Side view of the horizontal angle α; Fig. 7 is a side view showing the present invention as viewed from the direction of the catheter; Fig. 8 is a bottom view showing the second embodiment of the apparatus of the present invention; and Fig. 9 is a view showing the third apparatus of the present invention. Fig. 10 is a front view showing the ninth drawing of the apparatus of the present invention from the left side; Fig. 11 is a front view showing the ninth drawing of the apparatus of the present invention from the right; and Fig. 12 is a ninth drawing of the present invention. FIG. 13 is a front view of the ninth drawing of the present invention; FIG. 14 is a rear left three-quarter rear view of the ninth drawing of the present invention; and FIG. 15 is a view showing a ninth drawing of the present invention. A side view of a part of the apparatus; Fig. 16 is a partial plan view of Fig. 15 of the present invention; Fig. 17 is a side view showing a further portion of Fig. 9 of the present invention; and Fig. 18 is a rear view of Fig. 17 of the present invention. Figure 19 is a left side view showing the assembled parts of the components of Figures 15 and 17 of the present invention; Figure 20 is a right side view showing the combination of the 19th embodiment of the present invention; and Figure 21 is a view showing the apparatus of the present invention in the first position, Side view of a further embodiment; Figure 22 is a table Figure 21 is a view of the second position; Figure 23 is a plan view showing the 21st position of the present invention in the first position; and Figure 24 is a front view showing the 21st position of the present invention in the first position; Illustrated before the application of the device of the present invention to the member of Fig. 21; and Figs. 26 and 27 are views showing the application of the device of Fig. 25 before the use of a first laryngoscope; Figures 28 and 29 are schematic views showing the application of the device of the present invention to the device of Figure 25 prior to use of a second laryngoscope.

Referring to the drawings, a device 1 for using a gastroscope includes: at least one airway tube 2 and one side cover 3, one end having at least one airway tube, and the mask 3 having an end 4, a proximal end 5 and a peripheral portion 6 fixed Or the connection is actually located behind the throat of the patient to form a closed space in the throat air inlet and the periphery is formed around a hollow internal space or the inner cavity 7 of the mask 3 and at least one airway tube 2 is opened into the inner cavity 7 of the mask 3 and the device further comprises a The catheter 8 serves as a passage for the throat mirror to enter the esophagus of the patient when the mask 3 is in place.

Considering the overall appearance, the device 1 of the present invention is similar to the conventional throat mask airway device because it includes, but not all, the basic components, such as the airway tube 2 and the mask member 3. By reference to the drawing, the device 1 has a proximal end 1a (this end is closest to the user when the device is in use), a distal end 1b (this end is the farthest from the user when the device is in use), the back or the abdomen Or the throat and the left and right sides.

The airway tube 2 extends from the proximal end 2a to the distal end 2b and the distal end 2b enters the hollow mask portion 3. The airway tube 2 can be repeatedly deformed or relatively rigid to assist in inserting the device 1 into the patient's body as a handle and guide. The airway tube 2 can be constructed of any material and is used for this purpose today, as is well known to those skilled in the art such as silicone and plastic materials. It can be straight, elastic or molded into a suitable bone shape.

Referring to the first embodiment, from the first to seventh embodiments, the mask portion 3 includes a body which is generally formed as a backing plate 9 (shown in FIG. 3) and a periphery, and may be in the form of a blow cuff 6 and is formed by the proximal end 6a. Extends to the distal end 6b. Blowing cuffs 6 can be mentioned For a blowing line 14. The blow cuff 6 is preferably fixed or disposed in the space behind the throat to form a closed space in the throat air inlet without the device 1 penetrating into the throat. Different mask sizes are available for patients of different body types.

The cuff 6 may comprise a blown PVC and has a generally elliptical blow ring. The cuffs 6 are integrally formed.

Preferably, the mask describes a convex curve from near to distal. Further preferably, the back panel 9 includes a back and an abdomen, the back being smooth and having a convex curvature across the width. Also preferably, the back surface of the airway tube 2 corresponds to a curvature to a curvature across the width of the backing plate 9. The backsheet 9 typically forms a 50A hardness vinyl chloride polyurethane alloy PVC+PU. This material is very soft and more susceptible to deformation than the material of the airway tube 2. The back panel 9 is generally elliptical when viewed from the abdomen or back.

In contrast to conventional throat mask airway devices, device 1 includes a catheter 8 for facilitating access to the device, such as a fiber optic mirror and a laryngoscope mask, into the patient's esophagus. In this embodiment, the apparatus 1 of the present invention includes a proximal end 1a and a distal end 1b with a major axis therebetween and wherein the catheter 8 provides an angle to compensate for a midline relative to the major axis of the device. This method has a relative advantage in that the catheter 8 and the airway tube 2 are comfortably placed on the same plane, as in some cases, if there is not enough space. Thus, the catheter 8 has an angle relative to the device spindle at the compensation centerline, which allows the catheter 8 and the airway tube 2 to be more easily positioned within the patient's esophagus. Further in this embodiment, the catheter 8 does not obstruct the airway tube 2 and thus the airway is established by the device.

The conduit 8 preferably has a larger hole diameter. Usually between 5 and 25 mm, also commonly between 10 and 20 mm. The most typical is 15mm. A throat mirror or fiberoptic mirror is allowed to pass through the catheter 8. In addition, the diameter of the catheter can be different depending on the patient's body structure. Preferably, the conduit 8 comprises a plurality of channels 11 (eg Figure 4) is shown to provide better rigidity. Preferably, the conduit 8 has a plurality of channels or networks 13 between the channels 11, wherein the channels 13 increase the rigidity of the conduit 8. Preferably, the catheter 8 is resilient to assist in insertion of the device into the esophagus of a different patient. In addition, the device 1 of the present invention reduces friction between the inner wall of the catheter 8 and the inserted gastroscope, thereby facilitating the insertion of the gastroscope into the catheter 8 and placing it in the esophagus of the patient.

Preferably, the catheter 8 extends through the device mask portion 3 and contacts the distal end 6b of the cuff 6. Preferably, the distal end 8b of the catheter 8 is adjacent to the distal end 6b of the cuff 6. More preferably, the distal end 8b of the catheter 8 provides an angle a relative to the horizontal plane (where the horizontal plane is perpendicular to the device spindle when the device 1 is substantially linearly constructed). Typically, the angle a is between 10 and 15 degrees and preferably 45 degrees with respect to the horizontal, and preferably the catheter 8 is provided with the distal end 8b having an angle a relative to the horizontal to help insert the device 1 into the esophagus of the patient. Preferably, the distal end 8b of the catheter 8 does not extend over the distal end 6b (the cuff top) of the cuff 6, so that when the device 1 is inserted, it does not interfere with the guiding means provided by the top of the cuff 6. It can be observed by Figures 5 and 6, wherein Figure 6 depicts the area within the circle of Figure 5. Specifically, referring to Fig. 6, the distal end 8b of the catheter 8 has an angle a with respect to the horizontal plane. Generally, when the angle a increases relative to the horizontal plane, the device 1 is easier to insert and less likely to be inserted when it hurts the patient's esophagus.

For most of the length, the catheter 8 is easily molded and extends from an elastic material such as silicone, other plastics and rubber, preferably with a hardness of between 60 and 70 degrees. The catheter 8 for adults has an inner diameter of about 15 mm and an axial wall thickness of between 1-2 mm.

Figure 2 shows an embodiment of the device of the present invention in which a connector 12 is provided at the proximal end 2a of the airway tube 2. In this embodiment, the connector 12 It is allowed to connect the airway tube 2 to the gas supply. The connector 12 is constructed of a relatively rigid plastic material (compared to the airway tube 2) for easy connection of air lines and suction pumps. In a preferred embodiment, however, the device does not include a connector located at the proximal end 2a of the airway tube 2. In the present embodiment, in which the connector is not provided to the proximal end 2a of the airway tube 2, the insertion into the patient's esophagus is improved.

As shown in Fig. 2, the device 1 preferably has an inflation line 14 for selective inflation or deflation of the inflatable cuff 6, wherein the inflation line 14 extends from the distal end 14b and is coupled to the cuff 6 when the device 1 is in use. The proximal end 6a is located at one of the proximal ends 14a of the patient. An inspection valve 16 is located within the elastomeric tube 14.

In use, the device 1 of the present invention is inserted into the patient's mouth and through the throat through the laryngeal cap until the mask 3 stops at the base of the throat at the distal end of the cuff 6 and the upper end of the esophagus is closed (the mask 3 is not easily accessible due to size). The cuff 6 is then inflated to close the throat intake.

After insertion into the device, the gastroscope or fiberoptic mirror or throat mirror can be inserted through the catheter 8. The conduit 8 provides an angle to compensate for a centerline relative to the spindle of the device 1. The catheter 8 has an angle to compensate for the midline such that the catheter 8 and the airway tube 2 are positioned within the patient's esophagus, increasing the airway access space in the throat and avoiding airway obstruction. Therefore, the airway establishment is established in the patient by the airway tube 2 and the gastroscope can be inserted through the catheter 8 in synchronization.

Referring to Figure 8, the apparatus of Figures 1 to 7 is changed. In this variation, the catheter 8 provides a nip region 17 that can include a connector for easy insertion into the throat mirror.

A third embodiment of the apparatus 1 of the present invention will be described with reference to Figures 9-20. In particular, in Figures 10-13, device 1 is similar to the device described in Figures 1-8, The method comprises: at least one airway tube 2 and one side cover 3, and one end with at least one airway tube 2, the mask 3 has a distal end 4, a proximal end 5 and a peripheral component 6 fixed or connected to be actually located behind the patient's throat Forming a closed space in the throat air inlet and surrounding component 6 surrounds a hollow internal space or mask 3 lumen 7 and at least one airway tube 2 opens into the inner cavity 7 of the mask 3 and the device further includes a catheter 8 when the mask 3 is in place As a channel for the patient to enter the esophagus of the patient. The material or compositional changes as described above can also be used in this embodiment.

In this embodiment, the airway tube 2 and the catheter 8 are housed in a structure. The piece 18 is in the form of a nip in this embodiment. The occlusal region 18 integrally formed plastic member is formed by two holes for accommodating the airway tube 2 and the catheter 8, respectively. Secondly, the occlusal region 18 can be integrally formed with one or both of the airway tube 2 and the catheter 8. The occlusal region 18 has upper and lower (in use) occlusal surfaces 18a, 18b and is comprised of a relatively soft material or insert material that protects the patient's teeth when the device 1 is in use. The occlusal region 18 has a proximal end 19a, 19b and provides a distal end 19b trapezoidal portion 19c to facilitate insertion of the device 1. As shown in Fig. 18, at the proximal end 19a, the occlusal region 18 has a plane 20 of holes 20a, 20b. An airway tube extension 2a can be attached to the aperture 20b as shown, or a longer airway tube 2 can be used to extend from the mask portion through the nip region 18 to the other side. The occlusal region 18 serves not only to prevent penetration of the airway tube 2 and the catheter 8 but also to provide structural strength and rigidity of the device 1 to maintain the airway tube 2 and the catheter 8 and other components in position with each other.

Referring to Figure 13, it can be found that the catheter 8 has an elliptical portion to assist in loading A method of inserting and having an inner surface 21 having a longitudinally extending rib reducing friction force 22 is provided. The ribs 22 combine to form a smaller inner surface area than provided by the smooth inner bore, so that the friction is reduced in the catheter 8 and the insertion of the throat mirror. Edge 22 It may extend from the full length of the catheter 8 or only a significant portion. As an additional or alternative friction reducing tool, the conduit 8 provides polyoxane treatment as lubrication. As shown in Fig. 13, the inner surface of the duct 8 provides two longitudinally opposite extending passages 23 which are approximately V-shaped. The use of these channels as support points allows the catheter 8 to be more easily compressed into an expansion, as fully illustrated in Figure 13, to aid insertion of the device 1 and to assist the laryngoscope through the catheter 8.

Figures 15-20 depict how the device 1 is preferably formed. As shown The device 1 comprises three main components, a cuff portion 6, a combined airway tube 2 and a catheter assembly 8, which can be regarded as a back plate and an inflation tube. The cuff portion 6 can be integrally formed of silicone or plastic material as shown in Figures 15-16. For the conventional shape but including the curved fixing surface 24, the upper end has an adhesive rib 24a. The combination of the airway tube 2 and the catheter composition 8 in Figures 17-18 may be integrally formed or include pre-formed members, completed and combined. Preferably, Fig. 18 shows a state in which the device is not assembled, wherein the length of the airway tube 2 and the catheter 8 is longer than that of Fig. 17 (completed combination). Referring to Figure 17, it can be seen that the airway tube 2 ends at a lower direct flashing end 25 that is lower than the height of the catheter 8 to coincide with the fixed surface 24 of the cuff portion 6. An inflation line can be attached to the cuff portion 6 by a suitable tool. As shown, preferably, one end of the conduit 8 is reduced rearwardly relative to a plane that is perpendicular to the longitudinal axis by 20 degrees.

21 to 29 illustrate a fourth embodiment of the apparatus of the present invention. As mentioned earlier In an embodiment, the device 1 comprises at least one airway tube 2 and a side cover 3, at one end with at least one airway tube 2, the mask 3 having a distal end 4, a proximal end 5 and a peripheral component 6 fixed or connected to the patient The rear of the throat forms a closed space for the throat air inlet and the peripheral component 6 surrounds a hollow internal space or the inner cavity 7 of the mask 3 and at least one airway tube 2 opens into the inner cavity 7 of the mask 3 and the device further includes a conduit 8 When the mask 3 is in place, it acts as a passage for the throat to enter the esophagus of the patient. The material or compositional changes as described above can also be used in this embodiment.

The main difference between the device and the aforementioned device is the distal end of the catheter 8. structure. In this embodiment, the distal end of the catheter 8 is tapered to taper and the tool 26 allows the outlet 27 to extend. In the present embodiment, the tool 26 has a four slit in the wall of the conduit 8 extending a distance behind the outlet 27 sufficient to allow an external extent of 5 mm to at least 15 mm. Thus, as shown in Figures 26-27, the position of the outlet 27 is large enough to accommodate the throat mirror 28 having a diameter of about 5 mm without extending about 5 mm in diameter, whereas in Figures 28-29, the outlet 27 is located at another In one position, it must be extended to accommodate a laryngoscope with a diameter of 15 mm. Although the diameter of the throat mirror currently used is mostly not more than 15 mm, the present invention is also applicable to a throat mirror having a large diameter in the future.

Therefore, it can be shown that the present invention provides a device that is safe and correct Insert the laryngoscope 28 into the esophagus of the patient and establish an airway at the same time and protect the airway from reflux or vomiting.

1‧‧‧ device

2‧‧‧airway tube

3‧‧‧ mask

4‧‧‧ distal

5‧‧‧ Near end

6‧‧‧Cuff device

6a‧‧‧ proximal end

6b‧‧‧Remote

7‧‧‧ lumen

8‧‧‧ catheter

8a‧‧‧ proximal end

8b‧‧‧Remote

14‧‧‧Blowing line

14b‧‧‧Remote

Claims (29)

A laryngoscope device for applying a laryngoscope includes: at least one airway tube and a cover at one end of the airway tube and the mask having a distal end, a proximal end and a peripheral portion fixed or connected to the patient's throat The rear actual and potential space forms a closed space around the throat air inlet, and the periphery is formed to surround a hollow inner space or the mask inner cavity, and at least one airway tube opening enters the mask inner cavity and the device further includes a conduit When the mask is in place, as the passage of the throat mirror into the esophagus of the patient, wherein the device includes a proximal end and a distal end, wherein a main axis is located therebetween, and the catheter includes a proximal end and a distal end The end, wherein the distal end of the catheter forms an acute angle a with respect to a horizontal plane, wherein when the device is substantially linear, the horizontal plane is perpendicular to the major axis of the device. The laryngoscope device of claim 1, wherein the device includes a proximal end and a distal end, wherein a main axis is located therebetween and wherein the catheter provides an angle to compensate a major midline relative to the main axis of the device . The laryngoscope device of claim 1 or 2, wherein the device is configured to reduce the frictional contact force between the inner wall surface of the catheter and the laryngoscope inserted therein. A laryngoscope device according to claim 3, wherein the device provides a means for reducing the surface area of the inner wall of the catheter. The laryngoscope device of claim 4, wherein the tool comprises a plurality of longitudinally extending ridges. The laryngoscope device of claim 1 or 2, wherein the catheter has a larger hole diameter relative to the airway tube. The laryngoscope device of claim 1, wherein the catheter has a diameter between 5 and 25 mm, typically between 10 and 20 mm and mostly at 15 mm. The laryngoscope device of claim 1, wherein the axial wall thickness of the catheter is between 1 and 2 mm. The laryngoscope device of claim 5, wherein the catheter comprises a plurality of holes formed in the wall. The laryngoscope device of claim 7, wherein the catheter comprises a plurality of channels formed in the wall. The laryngoscope device of claim 1, wherein the catheter is made of tantalum. The laryngoscope device of claim 1, wherein the catheter has a hardness of between 60 and 70 degrees. The laryngoscope device of the above item 1, wherein the peripheral component is an inflatable cuff. The scope device of claim 1, wherein the mask comprises a backing plate. The laryngoscope device of claim 1, wherein the airway tube has a diameter smaller than a diameter of the catheter. The laryngoscope device of claim 1, wherein the airway tube has a material that is greater than a material of the mask. The laryngoscope device of claim 1, wherein the length of use of the catheter extends from the distal end of the mask through the patient's mouth and from the patient's teeth. The laryngoscope device of claim 1, wherein the airway tube and/or the catheter has a nip. The laryngoscope device of claim 18, wherein the occlusal region comprises a relatively soft wall adjacent to the patient's teeth when in use. The laryngoscope device of claim 18, wherein the distal end of the occlusal region comprises a portion that gradually becomes a cone. The laryngoscope device of claim 1, wherein a nip region is disposed on the catheter. The laryngoscope device of claim 1, wherein the distal end of the catheter is substantially adjacent to the distal end of the cuff. The laryngoscope device of claim 1, wherein the angle a formed by the distal end of the catheter is between about 10 and 15 degrees. The laryngoscope device of claim 19, wherein the distal end of the catheter does not extend beyond the distal end of the cuff. The laryngoscope device of claim 1, wherein a slit is provided at a distal end of the cuff. The laryngoscope device of claim 1, wherein the catheter is disposed separately from the airway tube. The laryngoscope device of claim 1, wherein the catheter and the airway tube are connected to each other. The laryngoscope device of claim 1, comprising a tool allowing the catheter to extend externally. The laryngoscope device of claim 28, wherein the tool comprises a slit adjacent to the exterior of the catheter.