JP2000262621A - Intratracheal tube insertion mask - Google Patents

Abstract

PROBLEM TO BE SOLVED: To correspond to the both of an oral tube insertion method and a nasal tube insertion method by means of one intratracheal tube insertion mask by forming a tube insertion port to put through an intratracheal tube so as to be movable at either one of the mouth side and the nose side of a patient by means of an insertion port moving means. SOLUTION: The intratracheal tube insertion mask 1 for inserting the intratracheal tube T to trachea from the mouth or the nose of the patient to secure his breath during an operation is provided with a mask body 3 which covers a part around the lip part and the nose of the patient and is provided with an anesthetic gas introducing port 2 and a soft pad part 4 to be adhered to a face surface by enclosing the peripheral part of the lip and nose parts of the patient when it is used. The mask body 3 has the tube insertion port 5 where the intratracheal tube T is put through to be independent of the port 2 and the insertion port moving means 6 is arranged between the port 5 and the body 3, by which the tube insertion port 5 is made to be movable to any side of the mouth or nose of the patient with respect to the mask body 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to providing anesthesia to a patient in order to safely secure the patient's breathing during surgery or treatment.
The present invention relates to a mask for endotracheal intubation for inserting an endotracheal tube into the trachea using a tracheoscopy fiberscope.

[0002]

2. Description of the Related Art As is well known, when an endotracheal intubation is performed by anesthesia, it may be difficult to expand the larynx with a normal laryngoscope, and it may not be possible to perform endotracheal intubation under direct vision. In this case, a tracheoscopy fiberscope is used, the end of the scope is pulled out from the tip of the tube through the scope through the endotracheal tube, and intubation is performed while confirming the position in the trachea. However, such intubation requires time, so it is necessary to use a mask under controlled breathing.

As a conventional mask of this type, a transparent cup-shaped mask body which covers the lips and nose of a patient and has an anesthetic gas inlet, and which is hermetically attached to the periphery of the mask body, is used when the patient is in use. And a soft pad portion that is in close contact with the face so as to surround the lips and the nose and the mask body is provided with a tube insertion port through which an endotracheal tube is inserted separately from the anesthetic gas inlet. I have. There are two methods for intubating the endotracheal tube into the patient's trachea, an oral intubation method and a nasal intubation method.

[0004]

The conventional tracheal intubation mask has the following drawbacks. Although the insertion position and the insertion angle of the endotracheal tube are different between the oral intubation method and the nasal intubation method, in the above-mentioned endotracheal intubation mask, since the tube insertion port is fixed at one place, It was necessary to separately prepare a mask for endotracheal intubation in which the tube insertion port was attached at a different mounting position for the intubation method by nasal and nasal intubation methods. For this reason, it is necessary to prepare at least two types of masks for endotracheal intubation, so that the management becomes complicated and extra costs are required. On the other hand, it is conceivable that a single tube insertion port is provided at an intermediate portion between oral and nasal, and this is used for both oral and nasal. However, in this case, the insertion angle of the endotracheal tube from the tube insertion port does not become an appropriate angle in both the oral and nasal intubation methods, and the tube is inserted in an unnaturally bent state. Therefore, there is a problem that the patient receives discomfort due to the elastic force from the tube.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a mask for endotracheal intubation capable of coping with both an oral intubation method and a nasal intubation method with a single endotracheal intubation mask. Aim.

[0006]

In the endotracheal intubation mask according to the present invention, an endotracheal tube is inserted into the trachea through the oral or nasal passage of the patient in order to ensure the patient's breathing during surgery or treatment. A substantially cup-shaped mask body that covers the lips and nose of the patient and has an anesthetic gas inlet, and is airtightly attached to the peripheral edge of the mask body for use during use. A soft pad portion that is in close contact with the face so as to surround the lips and the periphery of the nose of the patient, and the mask main body is provided with a tube insertion port through which the endotracheal tube is inserted separately from the anesthetic gas inlet. An insertion port moving means is provided between the tube insertion port and the mask main body, the insertion port moving means being capable of moving the tube insertion port to either the mouth side or the nose side of the patient with respect to the mask main body. Vignetting wherein the are.

[0007] Since the tube insertion port is arranged so as to be movable to both the mouth side and the nose side of the patient by the insertion port moving means, an intubation method using a single endotracheal intubation mask can be performed. And nasal intubation method. In addition, even during surgery or treatment, the intubation method can be easily changed by moving the tube insertion port. In addition, since the mask main body is provided with a tube insertion port through which the endotracheal tube is inserted separately from the anesthesia gas introduction port, the endotracheal tube can be inserted while performing ventilation by controlled respiration.

[0008] In the mask for endotracheal intubation according to claim 2, the insertion port moving means has a circular opening formed in the mask main body and an edge of the opening outside the mask main body. A cylindrical portion provided so as to protrude and having a threaded portion formed on an outer peripheral portion thereof; and an outer end portion of the cylindrical portion, the cylindrical portion being disposed so as to close the cylindrical portion and the center thereof. A disk in which the tube insertion port is provided at a position separated from the outer ring, and a substantially ring shape in which an internal thread portion is formed on the inner peripheral surface, and the male screw portion of the cylindrical portion while holding a peripheral edge of the disk And a ring-shaped holder for fixing the disk by screwing it between the cylindrical portion and the cylindrical portion. Thereby, by loosening the tightening by the ring-shaped holder, the disk on which the tube insertion port is attached is rotated to move the position of the tube insertion port, and the tube insertion port can be fixed together with the disk by tightening the ring-shaped holder. .

According to a third aspect of the present invention, in the tracheal intubation mask, a donut-shaped rubber film having a hole set at a diameter substantially smaller than the diameter of the endotracheal tube in the center of the tube insertion port is provided at the periphery thereof. A part is hermetically attached to the tube insertion port, and a cap for closing the tube insertion port is detachably attached to the tube insertion port. by this,
When the endotracheal tube is inserted into the tube insertion port, the rubber membrane is pressed against the outer surface of the endotracheal tube by its own elasticity and is brought into close contact with the tube. The gap between the tube and the tube is sealed. When the endotracheal tube is not inserted into the tube insertion port, the tube insertion port can be closed with a cap.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a mask for endotracheal intubation of the present invention will be described with reference to FIGS.
As shown in FIG. 1, a mask 1 for endotracheal intubation of the present invention
This is for inserting the endotracheal tube T into the trachea through the oral or nasal passage of the patient in order to ensure the patient's breathing during surgery or treatment, and covers the patient's lips and the nose and introduces anesthetic gas. A substantially cup-shaped mask body 3 having a mouth 2
And a soft pad portion 4 which is hermetically attached to a peripheral portion of the mask main body 3 and which comes into close contact with the face so as to surround the lips and the nose around the patient when used.

Further, a mask 1 for endotracheal intubation of the present invention.
In the mask main body 3, a tube insertion port 5 for inserting the endotracheal tube T separately from the anesthetic gas inlet 2 is provided,
Between the tube insertion port 5 and the mask main body 3, there is provided an insertion port moving means 6 for enabling the tube insertion port 5 to move to either the mouth side or the nose side of the patient with respect to the mask main body 3. ing.

The mask body 3 is made of a transparent synthetic resin material so that the lips and the periphery of the nose of the patient can be observed even when worn. As shown in FIG. 2, the mask body 3 has a circular opening 10 at a position where the lips and nose of the patient are located.
A cylindrical portion 11 is provided so as to protrude outward from the mask main body 3 and has a threaded portion 11a formed on an outer peripheral portion thereof. Further, the cylindrical portion 11
Is formed with an inner flange 11b at a tip end thereof.

The soft pad portion 4 is an annular continuous hollow tubular member made of synthetic rubber, and its bottom surface has a shape conforming to the undulation of a standard patient's nose and mouth annular peripheral portion. Has become. A flexible tube 4b for injecting a desired amount of air into the internal space 4a of the soft pad portion 4 and imparting appropriate elasticity to the soft pad portion 4 is connected to one side of the soft pad portion 4. ing. In addition, this soft pad part 4 has a side opposite to a part in contact with the patient's face,
It is attached to the edge of the mask body 3 by bonding.

The tube insertion port 5 will be described. As shown in FIG. 2, the tube insertion port 5 is formed in a substantially annular shape and is formed in the insertion port moving means 6.
The seal member 12 is fitted into the seal member 1a (to be described later), and the cylindrical body 13 having one end inserted into the seal member 12 is formed so as to communicate with the inside of the mask body 3.
The other end of the cylindrical body 13 has a substantially annular ring portion 14.
Is screwed. A rubber film that is hermetically attached to the tube insertion opening 5 formed by the cylindrical body 13 by sandwiching the peripheral edge between the cylindrical body 13 and the ring part 14 between the cylindrical body 13 and the ring part 14. 15 are arranged. A cap 16 for closing the tube insertion port 5 is detachably attached to the ring portion 14. Among the above members, the sealing member 12 and the rubber film 15
All members except for are made of a transparent synthetic resin material so that the lips and the periphery of the nose of the patient can be observed even when the endotracheal intubation mask 1 is worn.

The seal member 12 is provided between the outer flanges 12a and 12b, which are set to be larger than the diameter of the tube insertion port 5, to provide a peripheral edge of an insertion port mounting port 20 to be described later provided in the insertion port moving means 6. It is attached to the insertion port moving means 6 by being sandwiched. The sealing member 1 is attached to the cylindrical body 13.
2 near the end opposite to the side to be inserted
a is formed, and an annular flange portion 13b is provided substantially at the center of the outer surface.
Is formed, and an inner flange 13c is formed at the tip of the opposite end.

The ring portion 14 is composed of a short tube portion 14b having an internal thread 14a formed on the inner surface thereof, and an inner flange 14c provided at the tip thereof. As described above, the cylindrical body 13 and the ring portion 14 are connected to each other by the threaded portion 13a and the internal threaded portion 14a of the rubber film 15 between the inner flanges 13c and 14c. Is strongly sandwiched. The rubber film 15 has an intubation hole 15a set at a diameter m smaller than the diameter M of the endotracheal tube T substantially at the center thereof.
When the endotracheal tube T is inserted into the tube 5a, the elasticity of the endotracheal tube T allows the endotracheal tube T to move in the direction of intubation and hermetically seals the periphery thereof.

The insertion port moving means 6 has a circular opening 10 formed in the mask main body 3 and a cylindrical part 11 provided at an edge of the opening 10 so as to protrude outward from the mask main body 3. And a disk 21 arranged at the outer end of the cylindrical portion 11 so as to close the cylindrical portion 11 and to which the cylindrical body 13 forming the tube insertion opening 5 is attached, and a substantially ring-shaped disk 21. The disk 21 is formed by a ring-shaped holder 22 which is screwed into the cylindrical portion 11 while holding the peripheral portion of the disk 21 so that the disk 21 is sandwiched between the cylindrical portion 11 and fixed. Note that, among the members constituting the insertion port moving means 6, all members except the ring-shaped holder 22 are:
It is made of a transparent synthetic resin so that the patient's lips and the periphery of the nose can be observed even when the endotracheal intubation mask 1 is worn.

The disk 21 is a disk-shaped member in which an insertion port mounting port 21a for mounting the tube body 13 forming the tube insertion port 5 is formed at a position separated from the center thereof. The ring-shaped holder 22 has an internal thread 22a on the inner peripheral surface.
Are formed, and an inner flange 22b is formed at the end opposite to the side to be screwed with the cylindrical portion 11. As described above, the cylindrical portion 11 and the ring-shaped holder 22 are formed between the inner flanges 11b and 22b by screwing the screw portion 11a and the female screw portion 22a of each other. Is strongly sandwiched.

Next, a method of using the endotracheal intubation mask 1 configured as described above will be described. A connector (not shown) of a breathing circuit connected to the anesthetic gas source is connected to the anesthetic gas inlet 2 of the mask body 3 and the soft pad portion 4 is brought into close contact with the patient's face, thereby allowing the anesthetic gas to pass through the mask body 3. The patient is aspirated while filling the inside.

At this time, when the endotracheal tube T is to be inserted orally or nasally from the patient, the insertion port moving means 6 is used.
The ring-shaped holder 22 is rotated in a direction of unscrewing with the cylindrical portion 11 of the mask body 3 to loosen the tightening of the disk 21. Subsequently, by rotating the disk 21 in the circumferential direction, the cylinder 13 constituting the tube insertion port 5 attached at a position separated from the center of the disk 21 is moved to a position suitable for oral or nasal intubation. (See FIG. 3). In this way, the tube 13 forming the tube insertion port 5 is moved to a position suitable for an intubation method, and then the endotracheal tube T is intubated.

When inserting the endotracheal tube T into the tube insertion port 5, the cap 16 attached to the ring portion 14 to close the tube insertion port 5 is removed, and the endotracheal tube T is inserted into the intubation port 15 a of the rubber film 15. Do it by doing.
As a result, the rubber film 15 has appropriate elasticity and the intubation port 15a is set to have a smaller diameter than the diameter of the endotracheal tube T, so that the rubber film 15 is pressed against the outer peripheral side of the endotracheal tube T and adheres tightly. Since the tube insertion port 5 is always hermetically sealed while allowing the movement of the endotracheal tube T in the intubation direction, leakage of the anesthetic gas from this portion to the outside of the mask body 3 is prevented.

According to the endotracheal intubation mask 1 configured as described above, as shown in FIG.
Is arranged so that it can be moved to both the mouth side and the nose side of the patient by the insertion port moving means 6, so that a single endotracheal intubation mask 1 can be used for oral intubation. And nasal intubation method. This eliminates the need to prepare a dedicated endotracheal intubation mask for each intubation method, which facilitates management of the endotracheal intubation mask and reduces the number of prepared endotracheal intubation masks. Cost can be reduced. In addition, during the operation or the treatment, the intubation method can be easily changed by moving the cylindrical body 13 forming the tube insertion port 5. In addition, since the tube insertion port 5 through which the endotracheal tube T is inserted is provided in the mask body 3 separately from the anesthesia gas introduction port 2, the endotracheal tube T can be inserted while performing ventilation by controlled respiration. Even if the intubation operation takes time, the patient is less likely to cause hypoxemia.

When the endotracheal tube T is inserted into the tube insertion port 5, the rubber film 15 is pressed against the outer surface of the endotracheal tube T by its own elasticity and is brought into close contact therewith. The gap between the tube insertion port 5 and the endotracheal tube T is sealed while allowing the movement.
When the endotracheal tube T is not inserted, the tube insertion port 5 is closed by the cap 16 to prevent leakage of the anesthetic gas from the tube insertion port 5, and the endotracheal intubation mask 1 is simply replaced. It can also be used as a mask for anesthesia.

In the above embodiment, the sealing member 1
2, the rubber film 15 and the ring-shaped holder 22 constituting the insertion port moving means 6 are made of an opaque material.
The present invention is not limited to this, and any or all of the seal member 12, the rubber film 15, and the ring-shaped holder 22 may be made of a transparent synthetic resin material. Also,
In the above-described embodiment, an example is used in which a gap sealing material such as a packing or an O-ring is not used in a threaded portion between the cylindrical portion 11 of the insertion port moving means 6 and the ring-shaped holder 22, but the present invention is limited to this. If the disk 16 of the insertion port moving means 6 is rotatably arranged without using any of the above, the sealing of this portion may be further enhanced by using various gap sealing materials.

[0025]

According to the endotracheal intubation mask according to the first aspect of the present invention, the tube insertion port can be moved to both the mouth side and the nose side of the patient by the insertion port moving means. A single endotracheal intubation mask can support both oral and nasal intubation methods. This eliminates the need to prepare an endotracheal intubation mask for each intubation method, simplifies the management of endotracheal intubation masks, and reduces the number of prepared endotracheal intubation masks to reduce costs. Can be reduced. In addition, even during surgery or treatment, the intubation method can be easily changed by moving the tube insertion port. Also, since the mask body is provided with a tube insertion port for inserting an endotracheal tube separately from the anesthetic gas introduction port,
The endotracheal tube can be inserted while performing ventilation by controlled respiration, and even if the intubation operation takes a long time, the patient is less likely to cause hypoxemia.

According to the mask for endotracheal intubation according to the second aspect, by loosening the ring-shaped holder constituting the insertion port moving means, the disk on which the tube insertion port is mounted is rotated, so that the tube insertion port is suitable for the intubation method. The tube insertion opening can be fixed to an arbitrary position suitable for the intubation method by fastening the disk by the ring-shaped holder.

According to the endotracheal intubation mask of the third aspect, when an endotracheal tube is inserted into the tube insertion port, the rubber film attached to the tube insertion port provides
The gap between the tube insertion port and the endotracheal tube is sealed, so that leakage of the anesthetic gas from inside the endotracheal intubation mask can be prevented. In addition, even when the endotracheal tube is not inserted into the tube insertion port, by closing the tube insertion port with a cap, it is possible to prevent leakage of the anesthetic gas from the tube insertion port. It can also be used.

[Brief description of the drawings]

FIG. 1 is a perspective view showing the configuration and structure of an endotracheal intubation mask according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view showing the configuration and structure of the endotracheal intubation mask according to the embodiment of the present invention.

FIG. 3 is a side view showing the configuration and structure of the endotracheal intubation mask according to the embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Intratracheal intubation mask 3 Mask main body 4 Soft pad part 5 Tube insertion port 6 Insertion port moving means 10 Opening 11 Cylindrical part 12 Seal member 13 Cylindrical body 15 Rubber film 16 Cap 21 Disk 21 Disk 22 Ring-shaped holder

Claims (3)

[Claims] 1. A tracheal intubation mask for inserting an endotracheal tube into a trachea through the oral or nasal passage of a patient in order to secure the patient's breathing during surgery or treatment, comprising: A substantially cup-shaped mask body that covers the vicinity of the nose and has an anesthesia gas inlet; A pad portion, wherein the mask main body is provided with a tube insertion port through which the endotracheal tube is inserted separately from the anesthetic gas inlet, and the tube is provided between the tube insertion port and the mask main body. An endotracheal intubation mask, comprising: an insertion port moving means for moving the insertion port to either the mouth side or the nose side of the patient with respect to the mask body. 2. The insertion port moving means is provided in a circular opening formed in the mask main body, and is provided at an edge of the opening so as to protrude outward from the mask main body, and has an outer peripheral portion thereof. A cylindrical portion in which a male screw portion is formed; and an outer end portion of the cylindrical portion, the tube insertion port provided at a position spaced from the center and disposed so as to close the cylindrical portion. The disk is formed into a substantially ring shape in which an internal thread portion is formed on the inner peripheral surface, and the disk is screwed into the external thread portion of the cylindrical portion while holding the peripheral edge of the disk. 2. The endotracheal intubation mask according to claim 1, wherein the mask is configured by a ring-shaped holder that is inserted between and fixed to the cylindrical portion. 3. A donut-shaped rubber film having a hole set at a diameter substantially smaller than the diameter of the endotracheal tube in the center of the tube insertion port so that a peripheral portion thereof is hermetically sealed with respect to the tube insertion port. The cap which is attached and the cap for closing the tube insertion port is detachably attached to the tube insertion port.
Or the mask for endotracheal intubation according to any of 2.