JPH059556U - Double lumen endotracheal tube - Google Patents

Abstract

(57) [Summary] [Purpose] Aiming at cost reduction compared to conventional products by embedding a linear body for preventing lumen obstruction only in the bronchial part where bending or the lumen may be narrowed most. To provide a double lumen endotracheal tube capable of. [Structure] Both tip portions 7 and 8 of the tube body 2 on the tip side of the balloon 6 are divided into bifurcated shapes, and linear bodies 10 and 11 spirally surround the inner cavity on the peripheral walls of these divided tip portions. It is embedded in a shape and elastically deformable. A small balloon 1 is attached to both ends 7 and 8 of the tube body 2 in which the linear bodies 10 and 11 are embedded.
2 and 13 are installed.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

  This device is a double lens used for anesthesia and respiratory management in thoracic surgery. Menn type endotracheal tube.

[0002]

[Prior art]

  Some of the endotracheal tubes of this type have been filed by the applicant (actual 3-64654). This endotracheal tube inserts the tube body into the patient's trachea After surgery (extreme displacement of lungs, etc.) and postural changes (extreme changes of postural positions, etc.) ), The part inserted into the trachea or bronchus of the tube body is bent, To prevent the lumen from becoming blocked and obstructing subsequent surgery, the tube body In this case, a linear body for preventing the obstruction of the lumen is embedded in the peripheral wall extending over almost the entire length.

[0003]

[Problems to be solved by the device]

  By the way, in the case of the conventional endotracheal tube, the endotracheal tube The lumen is not blocked even if it is bent at any part of the tube body inserted into the support. Although there is some kind of prevention effect, Since the ridges and wires are embedded, it is difficult to manufacture the double lumen part especially in the trachea. There was a problem that burying would be time consuming and costly because it was rough. Again According to the applicant's subsequent tests, the portion of the tube body inserted into the trachea was Be careful not to bend it unless it is not, and bend it and narrow the lumen. It turned out that all that had to be inserted was the part that was inserted into the bronchus.

[0004]   Therefore, this invention eliminates the above-mentioned conventional problems, and bends and bends the most. By embedding the linear body only in the part of the bronchus where the cavity may become narrow, Double-lumen type endotracheal chew that can reduce costs compared to conventional products The purpose is to provide

[0005]

[Means for Solving the Problems]

  In order to achieve the above object, the present invention provides a double lumen type endotracheal tube as described above. In the tube, divide both ends of the tube body on the tip side of the balloon into a bifurcated shape. The linear body is split around the inner wall of the divided peripheral walls of both ends, and It is embedded so that it can be elastically deformed. And both ends of the tube body in which the linear body is embedded A small balloon is attached to the end, and on the outer peripheral surface of both tips of the tube body. A mark indicating the division base is attached.   Separately, in the double lumen type endotracheal tube as described above, A linear body surrounds the inner wall of the distal wall with one elongated inner lumen. And is embedded so as to be elastically deformable. And a tube book in which the linear body is embedded A small balloon is attached to the tip of one of the body's lumens, and this linear body The tip with one lumen embedded is a separate piece from the tube body. , Is fixed to the tip of the tube body. And the other linear body is buried There is a side hole communicating with the lumen near the tip opening of the tip with no lumen. There is.

[0006]

[Action]

  As mentioned above, the linear body is not almost the entire length of the tube body, and it is particularly easy to occlude the lumen Since it is embedded only in the tip of the tube body that is inserted into the bronchus, Can be done easily and at a low cost.

[0007]

【Example】

  1 to 6 show an embodiment of this invention. 1 is an overall perspective view with some parts omitted, and FIG. 2 is A plan view of the tip portion, FIG. 3 is an enlarged sectional view taken along the line AA of FIG. 1, and FIG. 4 is a line BB of FIG. It is an expanded sectional view which follows a line. In FIG. 1, 1 is an endotracheal tube made of silicone rubber. The inner cavities 3 and 4 are arranged side by side in the axial direction of the tube body 2. 6 is a tube A balloon attached to the tip of the main body 2, and the tip side of the balloon 6 is a two-pronged one. It is divided into shapes. Of the two divided ends 7, 8 for inserting the left bronchus The tip 7 with the lumen 3 is longer than the tip 8 with the lumen 4 for inserting the right bronchus There is. The linear bodies 10 and 11 surround the inner cavities 3 and 4 on the peripheral walls of both tip portions 7 and 8, respectively. It is embedded in a spiral shape and is elastically deformable. Tube book with linear bodies 10 and 11 Small balloons 12 and 13 are attached to both tip portions 7 and 8 of the body 2. Also, both tips A ring mark 15 serving as a mark indicating the division base is provided on the outer peripheral surface serving as the division base of the parts 7 and 8. , 16 are installed. The split bases of both tips 7 and 8 are the trachea and bronchus during intubation. Since it may hit the bifurcation (carina) of this and damage it, It is preferable to attach padding such as paddle silicone rubber or silicone gel. Good

[0008]   3 and 4, 17 is a small lumen for the balloon 6, 18 is a small lumen for the balloon 12, Reference numeral 19 is a small lumen for the balloon 13, and 21 and 22 are rear ends of the tube body 2 in FIG. A left branch tube and a right branch tube, which are connected to the lumens 3 and 4 respectively, and 24 is a strip joint attached to both branch tubes 21 and 22, 25 is a balloon 6 Pilot balloon for 26, pilot balloon for balloon 12 and 27 for balloon 13 Pilot balloons, 28, 29, 30 are attached to each pilot balloon One-way valve, 31 is a binding band. In the above, the length of the tip portion 7 is a ring mer. Approximately 4 cm from Ku 15, the length of the tip 8 is approximately 2 cm from the ring mark 16, both tips 7 and 8 The angle of the tube body 2 with respect to the central axis of the tube body 2 is as shown in FIG. It is set to a value close to 25 ° and 45 °, which are the angles of the bronchi. . The length from the ring marks 15 and 16 to the binding band 31 is about 30 cm, both branch tubes 21, The length of 22 is about 10 cm.

[0009]   Next, a method of using the endotracheal tube 1 will be described. When intubating Straighten both tip parts 7 and 8 that have been bent in advance with a tielet, and then Inserted into the patient's trachea. Then, a ring provided on the divided base portion of both tip portions 7 and 8 While checking the positions of the marks 15 and 16, advance the tube main body 2 so that the tip 7 comes out of the trachea. Inserted into the left bronchus, when the tip 8 hits the carina and is slightly inserted into the right bronchus Gently pull out both stylets with, and split base carina of trachea and bronchi Position it so that it does not hit directly. After intubation, inflate balloons 6, 12, 13 Both ends 7 and 8 of the tube body 2 are firmly fixed. This is the endotracheal tube As shown in Fig. 6, 1 is intubated and fixed in a proper position, and various operations are performed in this state. To be done. Then, the left and right trachea of the tube body 2 are changed by the operation of this surgery and the change of body posture. Even if both tip parts 7 and 8 inserted into the support are about to bend, Since the linear bodies 10 and 11 are buried, the lumens 3 and 4 thereof are not closed.

[0010]   7 to 12 show another embodiment. FIG. 7 is a perspective view showing the tip side of the tube body, FIG. 8 is a plan view of the tip portion, FIG. 9 is a plan view of FIG. 8, and FIG. 10 is an enlarged sectional view taken along line CC of FIG. It is a side view. In this embodiment, the left bronchus is divided among the divided distal ends 57 and 58. The tip 57 with the insertion lumen 53 is similar to the tip 7 of the previous embodiment, except that the right trachea is The tip 58 with the lumen 54 for supporting ventilation is slightly protruded from the base in front of the balloon 56. It has a length of a degree and has a structure in which it is divided from the tip portion 57 as in the above embodiment. Not not. A linear body 60 surrounds the inner cavity 53 in a spiral shape and elastically deforms on the peripheral wall of the distal end portion 57. It is buried so that it can be shaped. A small balloon 62 is attached to the tip 57. .

[0011]   In FIG. 10, 67 is a small lumen for the balloon 56, and 68 is a small lumen for the balloon 62. . Numeral 70 is a slit provided in the axial direction between the inner cavities 53 and 54 of both the tip portions 57 and 58, and its both edges are By cutting at an appropriate position, the tip opening surface can easily form the tip 58 as shown. It can be done. The tip portion 57 may be integrated with the tube main body 52, but is a separate body. Of the tube body 52, and the base portion cut shorter than the tip portion 58 of the tube body 52 is adjacent to the tip portion 58. You may contact and stick. As shown in FIG. 9, there is a lumen near the tip opening of the tip 58. A plurality of side holes 72 communicating with 54 are provided. The configuration other than this is the same as the above-mentioned embodiment. It is like.

[0012]   The endotracheal tube of this embodiment is also intubated in the same manner as in the above embodiment. Figure 11 shows the insertion It shows the state of tube fixation, and various operations are performed in this state. And the operation of this surgery The tip 57 inserted into the left bronchus of the tube main body 52 was broken due to Even if it is about to bend, since the linear body 60 is embedded in the tip, its lumen 53 is not blocked. When intubating, make sure the tip opening of the tip 58 is Carefully insert the right bronchus so that it is in the correct opposing position for good ventilation Must be inserted accidentally deeper than usual and the tip 58 There is a case where the tip end opening of the abuts against the carina and is blocked. But this fruit Even in such a case, the embodiment has the side hole 72 as described above, and this side hole serves as the right bronchus. Since they face each other, the right bronchus can be surely ventilated by utilizing this side hole 72. But Therefore, surgery can be performed more safely.

[0013]

[Effect of device]

  According to the inventions of claims 1 and 3, the linear body is embedded only in the tip portion of the tube body as described above. However, since it is not buried over almost the entire length of the tube body as in the past, The burial can be easily done and the cost can be reduced. . According to the invention of claim 2, the insertion position can be confirmed at the time of intubation, and accurate intubation can be performed. It According to the invention of claim 4, it is easy to manufacture the distal end portion having one lumen in which the linear body is embedded. In addition, this can be easily fixed and integrated with the tube body. According to the invention of claim 5, when the tip opening portion of the tip portion having the other inner cavity is not in the proper position. Also, a side hole can substitute for the tip opening of the tip.

[Brief description of drawings]

FIG. 1 is an overall perspective view, partly omitted, showing an embodiment of the present invention.

FIG. 2 is a plan view of a tip portion.

FIG. 3 is an enlarged cross-sectional view taken along the line AA of FIG.

FIG. 4 is an enlarged cross-sectional view taken along the line BB of FIG.

FIG. 5 is a schematic view showing a trachea and a bronchus.

FIG. 6 is a schematic view showing a usage state.

FIG. 7 is a perspective view showing a tip side of a tube body showing another embodiment.

FIG. 8 is a plan view of a tip portion.

9 is a front view of FIG. 8. FIG.

10 is an enlarged cross-sectional view taken along the line CC of FIG. 7.

FIG. 11 is a schematic diagram showing a usage state.

FIG. 12 is a schematic view showing different usage states.

[Explanation of symbols]

1 endotracheal tube 2,52 tube body 3, 4, 53, 54 lumen 6,56 balloon 7,8,57,58 Tip 10, 11, 60 linear objects 12, 13, 62 Small balloon 72 side hole

Claims (5)

[Scope of utility model registration request] 1. A tube main body has two lumens arranged side by side in an axial direction, and a balloon is attached to a distal end portion thereof.
And in the double lumen endotracheal tube in which the distal end portion having one of the lumens is longer than the distal end portion having the other lumen on the distal end side of the balloon, both of the tube main body on the distal end side of the balloon The tip portion is divided into two forks, and the linear body is embedded in the peripheral wall of the divided both tip portions so as to spirally and elastically surround the inner cavity, and the linear body is embedded. A double lumen endotracheal tube having small balloons attached to both ends of the tube body. 2. The double-lumen type endotracheal tube according to claim 1, wherein the distal end portions of the tube body are provided with marks on their outer peripheral surfaces to indicate the divided base portions. 3. The tube body has two lumens arranged side by side in the axial direction, and a balloon is attached to the distal end thereof,
And in the double-lumen endotracheal tube in which the distal end with one lumen is longer than the distal end with the other lumen on the distal side of this balloon, A linear body is embedded in a peripheral wall of a certain distal end portion so as to spirally and elastically deform so as to surround the inner cavity, and a small balloon is provided at the distal end portion having one inner cavity of the tube main body in which the linear body is embedded. A double-lumen endotracheal tube characterized by being attached. 4. The double-lumen endotracheal tube according to claim 3, wherein the distal end portion having the one inner cavity is formed separately from the tube main body, and is fixed to the distal end portion of the tube main body. . 5. The double-lumen type endotracheal tube according to claim 3, wherein a side hole communicating with the inner cavity is provided near the distal end opening of the distal end portion having the other inner cavity.