JPH08266628A - Oral mask for general anesthesia - Google Patents

Abstract

PURPOSE: To provide an oral mask for general anesthesia which safely enables nasotracheal intubation while ventilating air by the oral mask under the general anesthesia. CONSTITUTION: A mask main body 1 is inclined outward as it proceeds downward, and both left and right side edges are projected downward more than both front and rear side edges, and the lower edge is curved so as to be brought into close contact with the mouth side, and a bored hole is arraged in a top part, and an installing tube 3 which can be installed by communincating with a Y adapter 6 to join and connect an intake tube 10 of an anesthetic machine and an expiration tube 9 to each other, is arranged and formed in the bored hole.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an anesthesia mouth mask for use during general anesthesia during surgery, and more specifically to a patient suffering from endotracheal intubation by oral administration under general anesthesia. The present invention relates to a mouth mask for general anesthesia used for transnasally intubating an endotracheal tube while ventilating.

[0002]

2. Description of the Related Art For intratracheal anesthesia, as shown in FIG. 9, a Y connecting an expiratory tube 9 and an inspiratory tube 10 of an anesthesia machine (not shown) is joined.
A mask 5 for cocooning the nose and mouth is attached to the opening of the adapter 6 in communication with each other, and oxygen, laughing gas and anesthesia gas sent to the inner side of the mask 5 are inhaled by the patient for anesthesia, and then the laryngoscope. One end of the endotracheal tube is orally inserted into the trachea of the patient by using, and the other end is attached to the Y adapter with the mask removed.

As described above, when endotracheal intubation is performed orally, it is necessary to check the larynx with a laryngoscope, but there are rare patients with difficult intubation in which the larynx cannot be seen. In the case of difficult intubation, a method in which a fiberscope is inserted nasally, the larynx is confirmed, the tip is placed in the trachea, and the endotracheal tube is guided to the trachea by using the fiberscope as a guide is usually used.

The mask for anesthesia by mask anesthesia is shown in FIG.
And, as shown in FIG. 8, there are vertically long ones that cover the nose and mouth according to the shape of the patient's face and circular ones when seen from a plane,
It is also proposed that a part of it is transparent to observe cyanosis on the lips.

[0005]

Further, the conventional intubation method using a fiberscope is performed while the patient is conscious. The conscious method has the advantage of maintaining ventilation during the intubation operation because the patient has spontaneous breathing, but has the drawback that it cannot be performed in patients who do not get cooperation, and the pain during the procedure is strong.

An object of the present invention is to provide a mouth mask for general anesthesia which can be safely intubated by nasal passage while ventilating with a mouth mask for anesthesia under general anesthesia.

[0007]

In order to achieve the above-mentioned object, the mouth mask for general anesthesia of the present invention inclines outward as the mask body goes downward, and the left and right side edges are made to project downward more than the front and rear side edges. The bottom edge is curved so as to be in close contact with the mouth, and the top is provided with a perforation, and the perforation is provided with an attachment tube that can be attached in communication with a Y adapter that joins and connects the inspiratory tube and expiratory tube of the anesthesia machine. Is forming.

Further, it is preferable that an elastic member is attached to the periphery of the mask main body so that it is brought into close contact with the mouth side during use because there is no gas leakage.

Further, it is preferable to form the mask main body so that the front and rear width thereof is 9 cm or less because it covers only the mouth.

[0010]

[Function] Since the left and right edges of the mask main body are projected below the front and rear edges, and elastic members are attached to the outer edges, the mask adheres to the lips regardless of the shape of the patient's face and does not leak gas. .

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described below with reference to the drawings.

In the embodiment shown in FIGS. 1 to 6, the mask main body 1 is inclined downward so that it spreads outward as it goes downward, and the lower end edges of its lower left and right ends project downwardly from both front and rear ends. It is shaped like a gentle curve. The mask body 1 is made of, for example, a hard synthetic resin or the like, and it is conceivable that a part of the mask body 1 is made transparent in order to observe cyanosis of the lips and the like. The front and rear width of the mask body 1 is about 7c
The width of the left and right sides is about 8 cm, and the left and right edges are protruded below the front and rear edges by about 2 cm. A hole 2 is formed on the top of the mask body 1, and a mounting tube 3 is fixed to the hole 2. An elastic member 4 made of, for example, rubber, sponge, soft synthetic resin, or the like is attached to the entire outer peripheral edge of the mask body 1.

Next, the operation of this embodiment will be described. The mask 5 for covering the nose and mouth shown in the conventional example is connected to an anesthesia machine (not shown) as shown in FIG. 9, and after introducing general anesthesia, the mask 5 is removed from the Y adapter 6. Y as shown in FIG.
The attachment tube 3 of the mask 7 is attached to the outer end of the adapter 6 so as to communicate therewith, and the mouth of the patient 8 is covered and ventilated with this mask as shown in FIG. When ventilation is insufficient, oral airway is also used to prevent tongue root subsidence, and in some cases, nasal cavity is plugged 11. An endotracheal tube 13 attached with a rubber diaphragm 12 is inserted from one nasal cavity. A fiberscope 14 is inserted into the ventilation path of the endotracheal tube 13 to guide the endotracheal tube 13 to the trachea.

Further, in the above-mentioned embodiments, the mask main body has a substantially cone shape and the elastic member is attached to the peripheral edge, but the present invention is not limited to this, and only the mouth is provided. All anesthesia masks having a shape that covers the above are included in the present invention.

[0015]

According to the present invention, since the left and right side edges are curved so as to project below the front and rear side edges, it is difficult to form a gap between the mouth and the mask, and only the mouth can be covered. The effect is that it is possible.

Further, since the elastic member is attached to the peripheral edge, it is possible to prevent the anesthesia gas from leaking further by closely contacting the mouth of the patient without pressing the Y adapter as in the conventional case.

Further, if the front and rear width of the mask main body is limited to 9 cm or less, there is an effect that the mask can be worn in close contact with the mouth except the nose.

[Brief description of drawings]

FIG. 1 is a perspective view showing one embodiment of a mouth mask for general anesthesia of the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is a front view of FIG.

FIG. 4 is a side view of FIG.

FIG. 5 is an explanatory diagram showing a relationship between a mouth mask for general anesthesia and an anesthesia machine.

FIG. 6 is an explanatory diagram showing a usage state.

FIG. 7 is an explanatory diagram showing a conventional anesthesia mask.

FIG. 8 is an explanatory view showing a conventional anesthesia mask.

FIG. 9 is an explanatory diagram showing a usage state of a conventional anesthesia mask.

[Explanation of symbols]

 1 Mask body 3 Mounting tube 4 Elastic member 9 Exhalation tube 10 Inhalation tube

Claims (3)

[Claims] 1. The mask main body 1 is inclined outward as it goes downward, the left and right side edges are projected downward from the front and rear side edges, and the lower end edge is bent so as to be in close contact with the mouth side, and a perforation 2 is formed at the top. A mouth mask for general anesthesia, wherein the perforation 2 is provided with a mounting tube 3 which can be mounted in communication with a Y adapter 6 that joins and connects an inspiratory tube 10 and an expiratory tube 9 of an anesthesia machine. 2. The oral mask for general anesthesia according to claim 1, wherein an elastic member 4 is attached to the peripheral edge of the mask body 1 so as to be in close contact with the mouth when used. 3. The mouth mask for general anesthesia according to claim 1, wherein the front and rear width of the mask body 1 is 9 cm or less.