JP2512114Y2 - Laryngeal mask insertion tool - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an insertion device for inserting a laryngeal mask used for airway maintenance in anesthesia, intensive care and emergency care into the larynx of a patient.

[0002]

2. Description of the Related Art Conventionally, as a method for securing an oral airway in anesthesia or the like, a method of performing endotracheal intubation using a laryngoscope has been generally used, but recently, it can be simply inserted into the larynx.
Laryngeal mask 1 as shown in
The method of using is also known. Laringel Mask 1
A hollow cuff 3 is attached to the periphery of an egg-shaped mask body 2, and a breathing tube 4 is connected to a tube connecting portion 4a on the back surface of the mask which communicates with a breathing hole 2a formed in the mask body 2, and the cuff 3 Air tube 5 for injecting air into
The laryngeal mask 1 is inserted into the patient's larynx in a state in which the air inside the cuff 3 is deflated and the cuff 3 is constricted, and then air is injected into the cuff 3 to inflate the cuff 3.
The airway is secured by covering the larynx with the mask 1 as shown in FIG.

[0003]

When inserting the laryngeal mask 1 into the larynx, the mask is pushed along the palate wall while the back surface of the mask is pressed against the palate wall of the patient so that the mask is not twisted. However, this requires the operator's finger to be inserted into the oral cavity of the patient, which may cause infection. Also, as shown in FIG. 1 (c), the cuff 3 at the tip of the mask 1 is the pharynx. The mask 1 may hit the rear wall and curl to the back side, and the mask 1 may not be inserted into the larynx. The present invention has been made in view of the above points, and an object thereof is to provide an insertion device capable of surely inserting the laryngeal mask 1 into the larynx without inserting the operator's finger into the oral cavity of the patient.

[0004]

In order to achieve the above object,
A first invention of the present application is provided with a grip portion and a pair of clamp bars extending forward from the grip portion and capable of sandwiching a tube connection portion on the back surface of a laryngeal mask, and the clamp bars are mutually connected at their tip portions. The connection part is connected to form a contact part that can come into contact with the back surface of the tip of the laryngeal mask, and a tractable strip extending from the corresponding part to the gripping part along the clamp bar is provided. Is characterized by. A second invention is provided with a pair of clamp bars capable of sandwiching the tube connecting portion on the back surface of the laryngeal mask,
The clamp bars are pivotally attached to each other at their intermediate portions so as to be openable and closable, and a contact portion that can come into contact with the rear surface of the tip of the laryngeal mask is formed at the tips of the clamp bars.

[0005]

When the insertion device of the first invention is used, first,
The tube connecting portion is pushed between the pair of clamp bars with the strip on the back surface thereof, and the contact portion constituted by the connecting portion of the tips of the clamp bars is brought into contact with the back surface of the tip portion of the mask. Next, the grip portion is held by hand and the mask is inserted into the larynx while being clamped by the clamp bar at the tube connection portion. At this time, the tip of the mask is prevented from being curled up by the contact portion, and the mask is smoothly and surely inserted into the larynx. After insertion, the strip is pulled, which allows the tube connection to be pushed out from between the clamp bars by the strip, allowing the clamp bar to be withdrawn while leaving the mask on the larynx. When the insertion device of the second invention is used, a pair of clamp bars are closed with the contact parts at the tips of the bars abutting against the back surface of the tips of the masks, and the mask is clamped between the clamp bars at the tube connecting portion. It is clamped, the mask is inserted into the larynx in this state, then the clamp bar is opened and the clamp bar is pulled out while leaving the mask on the larynx.

[0006]

EXAMPLE FIG. 2 shows an example of the insertion instrument of the present invention. The device includes a grip portion 10 and a portion extending from the grip portion 10 toward the front.
A pair of clamp bars 11 and 11 are provided, and the portions near the tips of the clamp bars 11 and 11 are curved forward according to the curvature from the palate to the larynx, and the tips of the clamp bars 11 and 11 are provided. Are connected to each other. In this embodiment, one bar is folded back in the middle to form both clamp bars 11 and 11, and both clamp bars 11 and 11 are connected to each other at the folded back portion. You may connect by welding etc. at the tip.

The connecting portion of the tips of both clamp bars 11, 11 is constituted by a contact portion 12 which can be brought into contact with the rear surface of the tip of the laryngeal mask 1, and a strip whose one end is attached to the corresponding portion 12. 13 is provided, and the ring 1 is attached to the other end of the strip 13.
4 is attached so that the ring 14 can be freely engaged with the hook 15 provided on the front surface of the grip portion 10. Although the strip 13 is formed of a stretchable material in this embodiment, the strip 13 may be provided with a slack so as to allow the tube connecting portion 4a described later to be pushed in even if it is not stretchable. Good.

Next, a method of using the insertion device will be described.
First, in a state where the cuff 3 of the laryngeal mask 1 is narrowed, the contact portion 12 is brought into contact with the back surface of the cuff 3 at the tip portion of the mask 1, and the tube connecting portion 4a on the back surface of the mask 1 is attached to the back surface with the strip 13. In the contacted state, it is pushed between the clamp bars 11 as shown in FIG. At this time, clamp bar 1
The interval between 1 and 11 is widened, and the tube connecting portion 4a is clamped between the clamp bars 11 and 11 by the elastic restoring force.
In addition, when the tube connecting portion 4a is pushed, the end portion of the tube 4 connected to the tube connecting portion 4a is clamped by the clamp bar 1
It passes through between 1 and 11 and protrudes to the back side, and the grip 10
The tube 4 slips out in front of the clamp bars 11, 11 at a portion near the tail end of the tube 4 located on the front side of the tube 4, so that the tube 4 is elastically sandwiched between the clamp bars 11, 11 at this slip-out portion. If this is set, the laryngeal mask 1 will be more stable and the clamp bar 1
It can be held at 1 and 11.

Next, hold the grip portion 10 together with the tail end of the tube 4 by hand, and attach the laryngeal mask 1 to the clamp bar 11,
It is inserted into the patient's laryngeal while being held at 11. On this occasion,
Even if the cuff 3 at the tip of the mask 1 contacts the posterior pharyngeal wall,
Since this portion is supported from the back by the contact portion 12, the cuff 3 does not curl up, and the mask 1 can be reliably inserted into the larynx. When the insertion is completed, a finger is then put on the ring 14 of the strip 13 and the strip 13 is pulled toward the front side. According to this, the tube 4 and the tube connecting portion 4a are pushed from the back side by the strip 13 and pushed out from between the clamp bars 11 and 11. If the grip portion 10 is moved to the front side in this state, the laringer mask 1 The clamp bars 11 and 11 are pulled out while leaving the left side in the larynx. Next, air is injected into the cuff 3 through the air tube 5, and the cuff 3 is inflated to the state shown in FIG. 1B, and the work is completed.

FIG. 4 shows another embodiment of the insertion tool, which comprises a pair of clamp bars 20, 20 pivotally attached to each other at a middle portion thereof via a pivot 21 so as to be openable and closable with respect to each other. It is configured like forceps.

A finger hook portion 22 for opening / closing operation is formed at the tail end of each clamp bar 20, and hook pieces 23 are provided so as to project inside the tail end portion of each clamp bar 20, respectively. When the bar is closed, the hook pieces 23, 23 of the both bars are
The claw portions 23a formed in the above are meshed with each other so that the clamp bars 20, 20 are restrained in a predetermined closed state.

The portion of each clamp bar 20 near the tip is curved forward in accordance with the curve from the palate to the larynx, and the tip of each clamp bar 20 can be brought into contact with the rear surface of the tip of the laryngeal mask 1. The pad portion 24 was formed. Further, each clamp bar 20 is laterally curved into an O-leg shape, and as shown in FIG. 5, the tip end side portion of the tube 4 is projected to the back side of the clamp bar 20, 20 to form the tube connecting portion 4a. The portion of the tube 4 near the tail end can be clamped between the clamp bars 20, 20.

In use, the clamp bars 20, 20
Is closed with the contact portion 24 being in contact with the back surface of the tip of the laryngeal mask 1, and the mask 1 is attached to the tube connecting portion 4 thereof.
a and the tube 4 are clamped between the clamp bars 20 and 20, and the mask 1 is inserted into the larynx while preventing the buffing of the cuff 3 at the tip portion of the mask 1 by the contact portion 24, and the clamp bars 20 and 20 are inserted after insertion. Open and pull out.

FIG. 6 shows a modification of the embodiment shown in FIG. 4, in which a hollow grip 25 is provided in place of the finger hook 22 and the hook piece 23 of the embodiment shown in FIG. The tail end portions 20a of the pair of clamp bars 20, 20 are inserted over the pivotal attachment portions of the both, and the pivot shaft 21 is engaged with the long groove 25a formed in the front surface of the tip end portion of the grip portion 25, so that the grip portion 25a is Axis 2
1 was used as a guide and slidable with respect to the clamp bars 20, 20. A narrow portion 25b is formed at the tail end of the grip portion 25 and a wide portion 25c is formed in the middle of the grip portion 25.
By pushing the tail end portion 20a of 0 into the narrow portion 25b, the clamp bars 20 and 20 are restrained in the closed state, and the grip portion 25a
The clamp bars 20 and 20 can be opened by pulling up and moving the tail end portion 20a to the wide portion 25c.

Further, marks 26 and 27 are provided on the tip side and the intermediate part of the clamp bars 20 and 20, respectively, and the tail end of the tube connecting portion 4a is aligned with the mark 26 on the tip side as shown in FIG. Place the gel mask 1 on the clamp bars 20, 2
It is possible to hold the Laryngeal mask 1 in an appropriate positional relationship, and when inserting the laryngeal mask 1 into the larynx, an intermediate mark 2
The insertion position of the mask 1 can be appropriately controlled by adjusting 7 to a predetermined tooth such as the first central incisor of the patient.

[0016]

As is apparent from the above description, according to the present invention, the laryngeal mask can be clamped by the clamp bar, and the mask can be inserted into the larynx without putting the finger into the oral cavity. The buffing of the cuff on the part is prevented by the contact portion at the tip of the clamp bar, and the mask can be smoothly and surely inserted into the larynx.

[Brief description of drawings]

1A and 1B are views showing a laryngeal mask, in which FIG. 1A is a perspective view, FIG. 1B is a side view of an inserted state, and FIG.

FIG. 2 is a perspective view of an example of the insertion instrument of the present invention viewed from the front.

FIG. 3 is a perspective view seen from the back in the use state.

FIG. 4 is a front perspective view of another embodiment of the insertion device of the present invention.

FIG. 5 is a perspective view seen from the back in the use state.

FIG. 6 is a front perspective view of still another embodiment of the insertion device of the present invention.

FIG. 7 is a perspective view seen from the back in the use state.

[Explanation of symbols]

1 Laringer mask 4a Tube connection part 11, 20 Clamp bar 12, 24 Abutment part 13 Band

Claims (2)

(57) [Scope of utility model registration request] 1. A gripping part and a tube connecting part extending from the gripping part to the front, which is on the rear surface of the laryngeal mask, can be clamped.
A pair of clamp bars, and the two clamp bars are connected to each other at their tip portions to form the connecting portion as a contact portion that can abut against the rear surface of the tip portion of the laryngeal mask. A laryngeal mask insertion instrument, which is provided with a strip that can be pulled along the gripping side. 2. A pair of clamp bars capable of sandwiching a tube connecting portion on the rear surface of the laryngeal mask are provided, and both clamp bars are pivotally attached to each other at their intermediate portions so as to be openable and closable, and at the tips of the both clamp bars. A laryngeal mask insertion instrument, characterized in that a pad portion which can come into contact with the rear surface of the tip of the laryngeal mask is formed.