JP7353998B2 - Intubation tube with intraoral positioning means - Google Patents

Description

The present invention is an intraoral position fixing means suitable for an intubation tube that is used by inserting the tube body side into the trachea in order to connect to an anesthesia machine or a ventilator to artificially ensure patient's breathing during surgery, etc. This is a technology related to intubation tubes.

Normally, intubation tubes are connected to anesthesia machines or ventilators during surgeries, etc., and the tube body is inserted into the trachea in order to artificially ensure the patient's breathing, such as when the upper airway is obstructed or consciousness is impaired. It is used to secure the airway.

By the way, intubation tubes used for such purposes must be securely fixed in position to prevent them from shifting in the patient's endotracheal position due to accidental removal during endotracheal insertion. Conventionally, a fixation tape such as adhesive tape is wrapped around the part of the tube inserted into the trachea that protrudes from the patient's mouth and then pulled out from side to side. Generally, a method has been adopted in which the position is fixed by pasting both open ends to the facial epidermis or the like.

However, if the patient has allergies or has suffered burns on the face and has weakened skin, the fixation tape cannot be used to fix the position in order to prevent skin damage. was there.

On the other hand, as a method for suppressing displacement of an intubation tube within a patient's body cavity, a "tracheal intubation tube" disclosed in Patent Document 1, for example, has been proposed.

Japanese Patent Application Publication No. 2015-73678

That is, Patent Document 1 discloses that the tube body is composed of a tube body and an annular extratracheal cuff through which the tube body is inserted. An intubation tube has been disclosed that is inflatable to cover a patient's tracheal introduction part within the trachea, thereby suppressing displacement.

However, in the case of the intubation tube of Patent Document 1, by inflating the extratracheal cuff to cover the patient's tracheal introductory part, positional displacement can be suppressed to a certain extent; Not only is it not possible to reliably prevent positional displacement when an undesired force is applied to the part of the intubation tube that is in the intubation tube in the direction of its removal, but it is also disadvantageous in that it complicates the treatment work during the procedure. was there.

In view of the above-mentioned problems observed in conventional methods, the present invention has been developed to provide a method for inserting an intubation tube into the trachea, which is used to connect an anesthesia machine or a ventilator to artificially ensure patient breathing during surgery, etc. It is an object of the present invention to provide an intubation tube with intraoral position fixing means that can reliably and easily prevent positional displacement.

The present invention has been made to achieve the above object, and consists of an intubation tube whose distal end side is inserted into the patient's trachea, and an intubation tube whose distal end side is inserted into the patient's trachea; a position fixing means for preventing displacement, and the position fixing means covers the circumferential surface of the region located in the oral cavity when the distal end side of the tube body is inserted into a predetermined position in the patient's trachea. The tube body is formed of a positioning elastic body having a larger diameter and a bonding layer to which the positioning elastic body is attached and attached to the circumferential surface side, and when the tube body is inserted into the trachea, the back side of the patient's dentition is formed. The most important feature is that the proximal end side of the positioning elastic body is abutted and supported, thereby making it possible to freely prevent positional displacement in the direction in which the tube body is removed.

In this case, the positioning elastic body is a stretchable tape piece made by cutting a stretchable tape material having a width of 23 to 27 mm and a thickness of 1 to 1.3 mm into a length of 75 to 85 mm and having an adhesive layer on the back side. The elastic laminate is a plurality of elastic laminates joined together to have a total thickness of 8 to 12 mm, and the elastic laminate is arranged around the circumferential surface of the tube body so that the depth is 23 to 27 mm, The adhesive layer located at the lowest layer of the stretchable laminate may be attached to the circumferential surface of the tube body as the bonding layer, or the adhesive layer may be provided on the back surface with a width of 23 to 27 mm and a thickness of 1 to 1.3 mm. Wrap the elastic tape material multiple times around the circumferential surface of the tube body so that the total thickness is 8 to 12 mm and the depth is 23 to 27 mm, and the adhesive layer located at the bottom layer is attached as the bonding layer. You can

Further, the positioning elastic bodies are formed of an elastomer material and have a depth of 23 to 27 mm and a thickness of 8 to 12 mm, and can be arranged separately in the length direction of the circumferential surface of the tube body. It is a prismatic elastomer piece of a book, and the prismatic elastomer pieces along the length direction of the tube body are separately attached to the circumferential surface via the bonding layer, or the aperture that is in contact with the circumferential surface of the tube body A cylindrical elastomer body with a depth of 23 to 27 mm and a thickness of 8 to 12 mm, which has a hollow part, is divided into two parts, and is formed by an elastomer part on one side and an elastomer part on the other side, which are arranged facing each other on the circumferential surface. The elastomer portion on one side and the elastomer portion on the other side may be attached via the bonding layer.

According to the present invention, the position fixing means covers the circumferential surface of the part located in the oral cavity when the distal end side of the tube main body of the intubation tube is inserted into a predetermined position in the patient's trachea, and enlarges the diameter. The elastic body for positioning can be easily attached to the optimal position of the tube body through the bonding layer because it is formed of an elastic body for positioning and a bonding layer that attaches the elastic body for positioning to the circumferential surface side. In addition to easily responding to the need for subsequent position changes, this simple procedure allows the proximal end of the positioning elastic body to be easily supported against the back of the patient's dentition when the tube body is inserted into the trachea. This makes it possible to prevent the intubation tube from being unintentionally displaced in the direction in which it comes out, and to securely fix the position of the tube body side.

For this reason, even if the patient has allergies or has suffered facial burns and has weakened skin, it is possible to remove the tube from the patient's mouth, which is inserted into the trachea as in the conventional method. Eliminates the complicated and delicate fixing work of wrapping a fixing tape such as adhesive tape around the protruding area and pasting both open end sides of the fixing tape pulled out to the left and right to the facial epidermis, etc. Therefore, it is possible to securely and easily fix the position without the risk of causing skin damage. In addition, the tube body can be fixed in position in the oral cavity with the proximal end of the positioning elastic body abutting and supporting the back side of the patient's teeth, so it can be fixed in place in the cheek, upper jaw, and lower jaw. The influence on the surgical operation on the body surface side can be reduced accordingly, and medical treatment can be performed more flexibly.

Moreover, when the stretchable laminate according to claim 2 is used as a positioning elastic body, the positioning elastic body can be formed by simply cutting and overlapping commercially available stretch tape materials. In addition to contributing to a reduction in product costs, the adhesive layer located at the bottom layer can be used as a bonding layer to easily attach to an intubation tube.

In addition, when the elastic tape material is wound around the circumferential surface of the tube body multiple times to form the positioning elastic body as described in claim 3, the commercially available elastic tape material can be used as is. In addition to being able to contribute more effectively to the reduction of product costs, by using the adhesive layer located at the bottom layer as a bonding layer, it is possible to improve the efficiency of the installation work.

Furthermore, when using prismatic elastomer pieces individually arranged in the longitudinal direction of the circumferential surface of the tube body as the positioning elastic body as described in claim 4, individual By using a prismatic elastomer piece as a constituent material, it can effectively contribute to cost reduction.

Furthermore, as described in claim 5, a cylindrical elastomer body having a hollow inner diameter in contact with the circumferential surface of the tube body is divided into two, and an elastomer part on one side and an elastomer part on the other side are used as the positioning elastic body. In this case, the tube can be easily clamped by simply pinching it from both directions on the circumferential surface of the tube body, and its position can also be changed more easily after attachment.

FIG. 2 is an explanatory diagram schematically showing a state in which the intubation tube is fixed in position on a patient according to the present invention. FIG. 2 is an explanatory diagram showing essential parts of an example of the present invention, of which (a) shows a state in which the position fixing means of Example 1 is attached to an intubation tube, and (b) shows a state before the position fixing means of Example 1 is attached. The status of each is shown. FIG. 7 is an explanatory view of the main parts showing a state in which the position fixing means of Example 2 is attached to the intubation tube. An enlarged perspective view of the main part showing a state in which the position fixing means as Example 3 is attached to the tube body FIG. 4 is an explanatory diagram of the position fixing means of Example 4, of which (a) shows the state in which the position fixing means of Example 3 is attached to the intubation tube, and (b) shows the state before the position fixing means of Example 3 is attached. Indicates the status of each. FIG. 1 is an overall perspective view showing an example of an intubation tube constituting the present invention.

FIG. 1 is an explanatory diagram schematically showing the situation when an intubation tube is inserted into the trachea of a patient by applying the present invention. FIG. 4 is an explanatory diagram showing specific examples of position fixing means in the intubation tube with intraoral position fixing means as Examples 1 to 4.

According to these figures, the intubation tube 11 with intraoral position fixing means includes an intubation tube 12 into which the distal end 13a side of the tube body 13 is inserted into the trachea 51 of the patient 50, as illustrated in FIG. 12 to prevent positional displacement during insertion into the trachea.

Among these, the intubation tube 12 is provided with a ventilation passage 14 with an inner diameter of about 8 mm if the tube body 13 is for adults, and has a required length from the proximal end 13a side to the distal end 13b side. For example, an appropriate commercially available product having the structure shown in FIG. 6 as an example may be used.

Moreover, the position fixing means 22 covers the circumferential surface 15 of the part located in the oral cavity 52 when the distal end 13b side of the tube body 13 is inserted into a predetermined position in the trachea 51 of the patient 50, and increases the diameter thereof. It is formed of a positioning elastic body 23 and a bonding layer 24 to which the positioning elastic body 23 is attached and attached to the circumferential surface 15 side.

FIG. 2 is an explanatory view showing essential parts of an example of the first invention (intubation tube with intraoral position fixing means), of which (a) shows a case in which the position fixing means of Example 1 is attached to the tube body. (b) shows the state before the same position fixing means is attached.

According to the figure, the positioning elastic body 23 constituting the position fixing means 22 is an elastic tape made of an elastic fiber material having a width of 23 to 27 mm and a thickness of 1 to 1.3 mm and having an adhesive layer 27 on the back side. The elastic laminate 25 is formed by joining together a plurality of elastic tape pieces 26a made by cutting the material 26 into lengths of 75 to 85 mm so as to have a total thickness of 8 to 12 mm. The stretchable laminate 25 can be formed, for example, by joining together a plurality of stretchable tape pieces 26a made by cutting a tape-shaped product name "Silkytex (beige)" manufactured by Alcare Co., Ltd. .

Therefore, when attaching the elastic laminate 25 to the tube body 13 side, the elastic laminate 25 is arranged around the circumferential surface 15 of the tube body 13 so that the depth is 23 to 27 mm, and the elastic laminate 25 is provided at the bottom layer. This can be done by using the adhesive layer 27 as the bonding layer 24. In this case, the stretchable laminate 25 may be mounted so that the one side end surface 25a and the other side end surface 25b are in close contact with each other, or the one side end surface 25a side or the other side end surface 25b side is attached to the other side end surface 25b. It can be mounted by being rotated so as to ride on the side or one end surface 25a side a little.

FIG. 3 shows a state in which the position fixing means according to Example 2 is attached to the tube body. According to the figure, the positioning elastic body 23 constituting the position fixing means 22 is an elastic tape made of an elastic fiber material having a width of 23 to 27 mm and a thickness of 1 to 1.3 mm and having an adhesive layer 27 on the back side. It is formed by wrapping the material 26 around the circumferential surface 15 of the tube body 13 multiple times so that the total thickness is 8 to 12 mm and the depth is 23 to 27 mm. This can be done by using the adhesive layer 27 located at the bottom layer as the bonding layer 24.

FIG. 4 is an enlarged perspective view of a main part showing a state in which the position fixing means according to Example 3 is attached to the tube body. According to the figure, the positioning elastic body 23 constituting the position fixing means 22 is made of an elastomer material (for example, made by Medical Leaders Co., Ltd. It is formed of a plurality of prismatic elastomer pieces 35 with a depth of 23 to 27 mm and a thickness of 8 to 12 mm, which are made using an elastomer material (such as that used in the product name "Bite Block").

For this reason, each of the prismatic elastomer pieces 35 can be individually attached to the peripheral surface 15 side via the bonding layer 24 as shown in FIG. 4 while being arranged along the length direction of the tube body 13. This means that it can be arranged as position fixing means 22.

FIG. 5 is an explanatory diagram of the position fixing means as Example 4, of which (a) shows the state in which it is attached to the intubation tube, and (b) shows the state before it is attached. According to the figure, the positioning elastic body 23 constituting the position fixing means 22 is made of a cylindrical elastomer with a depth of 23 to 27 mm and a thickness of 8 to 12 mm, which has a hollow part 37a in contact with the circumferential surface of the tube body 13. It is formed of an elastomer part 38 on one side and an elastomer part 39 on the other side, which are formed by dividing the body 37 into two. Note that the cylindrical elastomer body 37 can be formed using, for example, an elastomer material used in the product name "Bite Block" manufactured by Medical Leaders Co., Ltd., as in Example 3.

Therefore, the positioning elastic body 23 is attached to the tube body 13 side by connecting the one side elastomer part 38 and the other side elastomer part 39 which are arranged facing each other on the circumferential surface 15 of the tube body 13 via the bonding layer 24. You will be able to do that.

When the tube body 13 is inserted into the trachea 51, the intubation tube 12 is fixed to the positioning elastic body 23 on the back side of the patient's 50 teeth as shown in FIG. By abutting and supporting the proximal end 23a side of the tube body 13, it is possible to prevent the tube body 13 from shifting in the removal direction.

Next, the functions and effects of the present invention will be explained below.

That is, as the intubation tube 12, the intubation tube 11 with an intraoral position fixing means as illustrated in FIGS. 2 to 5 is used, and when inserted into the trachea into the patient 50 shown in FIG. By supporting the proximal end 23a in contact with the back side of the patient's 50 tooth row (not shown), it is possible to prevent the position from shifting in the direction of withdrawal and to fix the position.

That is, according to the present invention, the position fixing means 22 is located around the area located in the oral cavity 52 when the distal end 13b side of the tube body 13 of the intubation tube 12 is inserted into a predetermined position in the trachea 51 of the patient 50. It is formed of a positioning elastic body 23 that covers the surface 15 to increase the diameter, and a bonding layer 24 that attaches the positioning elastic body 23 to the circumferential surface 15 side of the tube body 13. In addition, the positioning elastic body 23 can be easily attached to the optimal position of the tube body 13 through the tube body 13, and the position can be easily changed thereafter. By simply bringing the 23a side into contact with and supporting the back side of the patient's 50 teeth, it is possible to reliably prevent the intubation tube 12 side from being displaced in the direction of removal of the tube body 13 and fix the position of the intubation tube 12 side. It will be possible.

For this reason, even if the patient 50 has an allergy or has suffered facial burns and has weakened skin, the patient's mouth cannot be removed from the tube inserted into the trachea as in the conventional method. The fixing process is complicated and requires careful attention, such as wrapping a fixing tape such as adhesive tape around the area protruding from the body and pasting both open ends of the tape, which are pulled out to the left and right, to the facial epidermis, etc. Therefore, it is possible to securely and easily fix the position without the risk of causing skin damage. In addition, when using the conventional method of fixing the tube body 13 to the body surface side of the cheek, upper jaw, and lower jaw, it was difficult to perform surgical operations on the same areas, but unlike the conventional method, the tube body 13 was fixed on the back side of the patient's 50 teeth. Since the position can be fixed in the oral cavity 52 while the proximal end 23a side of the positioning elastic body 23 is abutted and supported by the positioning elastic body 23, it is possible to perform surgery on the body surface side of the cheek, upper jaw, and lower jaw. By reducing the influence to that extent, medical treatment can be performed more flexibly.

In the present invention, when the elastic laminate 25 shown in FIG. 2 is used as the positioning elastic body 23 in Example 1, elastic tape pieces 26a cut from a commercially available elastic tape material 26 are simply overlapped. Since the positioning elastic body 23 of 1 can be formed, it can contribute to reducing the product cost, and by using the adhesive layer 27 located at the bottom layer as the bonding layer 24, it can be easily attached to the intubation tube 12 side. It can be attached to.

In addition, in the present invention, when forming the positioning elastic body 23 as Example 2 by wrapping the elastic tape material 26 around the circumferential surface 15 of the tube body 13 multiple times as shown in FIG. Since the adhesive layer 26 can be used as is, it can contribute more effectively to the reduction of product costs, and the adhesive layer 27 located at the bottom layer can be used as the bonding layer 24 to improve the efficiency of the attachment work. You can also do that.

Furthermore, in the present invention, when using the prismatic elastomer pieces 35 separately arranged in the length direction of the circumferential surface 15 of the tube body 13 as the positioning elastic body 23 as shown in FIG. By using individual prismatic elastomer pieces 35 as constituent materials without using molded products, it is possible to effectively contribute to cost reduction.

Furthermore, in the present invention, as shown in FIG. 5, a cylindrical elastomer body having an inner diameter hollow part 37a in contact with the circumferential surface 15 of the tube body 13 is divided into two, and one side elastomer part and the other side elastomer part are used for positioning. When used as an elastic body, it can be easily clamped on the circumferential surface of the tube body from both directions, and its position can also be changed more easily after attachment.

11 Intubation tube with intraoral position fixing means 12 Intubation tube 13 Tube body 13a Proximal end 13b Distal end 14 Air passage 15 Circumferential surface 22 Position fixing means 23 Positioning elastic body 23a Proximal end 24 Bonding layer 25 Stretchable laminate 25a One side end surface 25b Other side end surface 26 Elastic tape material 26a Elastic tape piece 27 Adhesive layer 35 Prismatic elastomer piece 37 Cylindrical elastomer body 37a Hollow part 38 One side elastomer part 39 Other side elastomer part 50 Patient 51 Trachea 52 Oral cavity

Claims (5)

It is composed of an intubation tube whose distal end side of the tube body is inserted into the patient's trachea, and a position fixing means attached to the tube body to prevent displacement when inserted into the trachea,
The position fixing means includes a positioning elastic body having a larger diameter and covering the circumferential surface of a portion located in the oral cavity when the distal end side of the tube body is inserted into a predetermined position in the trachea of the patient. , and a bonding layer that attaches and attaches the positioning elastic body to the peripheral surface side,
When the tube body is inserted into the trachea, the proximal end side of the positioning elastic body is brought into contact with and supported on the back side of the patient's teeth, thereby freely preventing displacement of the tube body in the withdrawal direction. An intubation tube with intraoral position fixing means. The positioning elastic body is made by cutting an elastic tape material having a width of 23 to 27 mm and a thickness of 1 to 1.3 mm into a length of 75 to 85 mm, which has an adhesive layer on the back side, and has a total thickness of 75 to 85 mm. The elastic laminate is a plurality of elastic laminates joined together so that the length is 8 to 12 mm, and the elastic laminate is arranged around the circumferential surface of the tube body so that the depth is 23 to 27 mm, and the elastic laminate is The intubation tube with intraoral position fixing means according to claim 1, wherein the adhesive layer located at the lowest layer of the body is attached to the circumferential surface of the tube body as the bonding layer. The positioning elastic body is made of an elastic tape material with a width of 23 to 27 mm and a thickness of 1 to 1.3 mm, which has an adhesive layer on the back side, and has a total thickness of 8 to 12 mm and a depth of 23 to 27 mm. 2. The intubation tube with intraoral position fixing means according to claim 1, wherein the tube is wound around the circumferential surface of the tube body multiple times, and the adhesive layer located at the lowest layer is attached as the bonding layer. The positioning elastic bodies are made of an elastomer material and have a depth of 23 to 27 mm and a thickness of 8 to 12 mm, and can be freely arranged in different length directions on the circumferential surface of the tube body. 2. The intraoral position fixing means according to claim 1, wherein the tube body is a prismatic elastomer piece, and the prismatic elastomer pieces along the length of the tube body are separately attached to the peripheral surface via the bonding layer. Intubation tube. The positioning elastic body has one elastomer part formed by dividing a cylindrical elastomer body with a depth of 23 to 27 mm and a thickness of 8 to 12 mm into two, which has a hollow part with a diameter in contact with the circumferential surface of the tube body, and the other part. 2. The intubation tube with an intraoral position fixing means according to claim 1, wherein the one side elastomer part and the other side elastomer part, which are arranged facing each other on the circumferential surface, are attached via the bonding layer. .

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