CN202387080U - Combined type double-lumen endobronchial tube - Google Patents

Abstract

The utility model discloses a combined double-cavity bronchial catheter, which comprises a bronchial occlusion tube (inner tube) guided by a targeting guide core and a single-cavity double-bag double-side hole tracheal tube (outer tube). The utility model is not limited in the selection and use of double-lung isolation and single-lung ventilation, the positioning of the tube is simple and accurate, and displacement can be effectively prevented.

Description

Combined double lumen endobronchial catheter

technical field

The utility model relates to a bronchial catheter. It is mainly suitable for anesthesia in thoracic surgery, etc., and can provide simple and effective techniques for double-lung isolation and single-lung ventilation. the

Background technique

Double lung isolation can provide single-lung ventilation, which is helpful for the exposure of the surgical field and intraoperative respiratory management. One-lung ventilation is currently provided by three commonly used lung isolation techniques: 1. Double lumen endobronchial tube (DLT), 2. Bronchial obstructor (BB), 3. Single lumen endobronchial tube (ET). ET was widely used in early thoracic surgery, but with the development of the first two techniques, ET is no longer commonly used. the

The first two techniques above still have different limitations. the

Although the double-lumen endobronchial tube (DLT) takes a short time to complete the intubation, it has the following disadvantages:

1) The total tube diameter is thick, relatively hard, relatively large damage to tracheal tissue, and strong irritation. the

2) If the patient needs to continue respiratory support treatment after the operation, the catheter is often removed and replaced with a single-lumen endotracheal catheter. The replacement process not only increases tissue damage, but may also cause other accidents due to difficulty in intubation again. the

3) Due to body position changes and surgical operations, the position of the catheter may sometimes shift and slip out of the bronchi, thereby affecting the ventilation method required for the operation and increasing the difficulty of the operation. the

4) The positioning of the intubation is technically difficult, and the precise positioning still depends on the fiberoptic bronchoscope. the

5) When right-sided catheterization is required for special reasons, anatomical factors often limit its application. the

Bronchial obstructor (BB) has the following disadvantages:

1) Both need the help of bronchoscope to accurately locate. the

2) It takes a long time to complete the catheterization and it is easy to slip off with the change of body position. the

3) The application of anesthesia in right thoracotomy is limited. the

4) All have the problems of complex manufacturing process and high cost. the

Utility model content

The utility model provides a combined double-cavity bronchial catheter, which is not limited in the selection and use of double-lung isolation and single-lung ventilation. the

In order to solve the above-mentioned technical problems, the utility model provides a combined double-lumen bronchial catheter, which includes a bronchial sealing tube guided by a targeting guide core and a single-lumen double-bag double-side hole tracheal catheter; the bronchial sealing tube guided by the targeting guide core The plugged tube has a "J"-shaped targeting guide core made of a spring steel wire with a diameter of 1 mm; the length of the single-lumen double-bag double-side hole tracheal catheter is less than 40 cm; the distal end of the single-lumen double-bag double-side hole endotracheal catheter is less than 4 cm There is a small air sac, the distal end of the small air sac has a Murphy's side hole, and there is a large sac 3-5cm away from the proximal end of the small air sac. the

The beneficial effect of the utility model is that: the bronchial occlusion tube guided by the targeting guide core can be adjusted at will under blind vision and the insertion direction can be controlled, and there are no restrictions on the selection and use of double-lung isolation and single-lung ventilation, and the positioning of the tube is simple Accurate and can effectively prevent shifting. the

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail. the

Figure 1 is a schematic diagram of a combined double-lumen bronchial catheter;

Figure 2-1 is a schematic diagram of the targeting guide core described in the embodiment of the present invention;

Figure 2-2 is a side view of Figure 2-1;

Figure 2-3 is a view of another placement method in Figure 2-2;

Fig. 3 is a schematic diagram of a bronchial occlusion tube guided by a targeting guide core according to an embodiment of the present invention;

Fig. 4 is a schematic diagram of the single-cavity double-bag bilateral hole tracheal catheter described in the embodiment of the present invention;

Figure 5 is a schematic diagram of using a combined double-lumen bronchial catheter;

Figure 6 is a schematic diagram of using a combined double-lumen bronchial catheter;

Fig. 7 is a schematic diagram of the four-way connection interface of the embodiment of the present invention. the

Detailed ways

The combined double-lumen bronchial catheter described in the utility model mainly consists of two parts: a bronchial occlusion tube (inner tube) guided by a targeting guide core as shown in Figure 3 and a single-cavity double-bag bilateral hole as shown in Figure 4 Endotracheal tube (outer tube). the

As shown in Figure 3, the bronchial occlusion tube (inner tube) guided by the targeting guide core has a "J"-shaped targeting guide core made of a spring steel wire with a diameter of about 1 mm; the proximal end has a round handle and a tapered soft fixation plug. The distal end is bent about 3cm, with an angle of about 30 degrees, or the distal end of the bending point is arc-shaped; the proximal end of the bending point is straight or buckled, and the bending surface is perpendicular to the distal bending surface, and the length is suitable for the catheter. The bronchial tube is a modified thinner endotracheal tube. The length is greater than 60 cm; the distal end is equipped with a high-capacity low-pressure air bag with a diameter greater than 2 cm after inflation. The length of the catheter at the distal end of the air bag is less than 5 cm, and the end is spherically closed; the side wall of the catheter at the distal end of the air bag has appropriate small holes for drainage and exhaust. After the guide core is placed, the catheter becomes a rigid and flexible "J" shape. the

As shown in Figure 4, the single-lumen, double-bag, and bilateral-hole endotracheal tube (external tube) is an improved ordinary single-lumen endotracheal tube, which is specially designed for combined use with a bronchial occlusion tube. The length of the catheter is about 40 cm; there is a small air sac at about 4 cm from the distal end, and there is a Murphy's side hole at the distal end of the small air sac, and there is a large sac at about 3-5 cm from the proximal end of the small air sac. Between the two air sacs, there is an oval side hole of about 5×15 mm in the wall near the lower tube of the big sac, and the diameter of the lower tube of the side hole becomes smaller. The catheter can also be molded into a "J" shape under the side hole under the balloon, with the side hole under the balloon facing away from the flexion side. the

As shown in Figure 7, the four-way connection interface, the inner tube is placed at the entrance with a central through-hole, a tapered sealing (leakage-proof) fixing plug with a diameter of about 1-3 mm, which can close the breathing circuit and fix the bronchial seal. Blockage. the

The utility model provides a bronchial catheter with simple and accurate positioning and effective prevention of displacement for lung isolation and single-lung ventilation by using a bronchial blocking tube and a single-cavity double-bag bilateral-hole tracheal catheter in combination. the

As shown in Figure 5, when in use, after the outer tube of the present invention is inserted into the trachea such as an ordinary single-lumen tracheal catheter, the distal flexion side faces the left side of the trachea, and is sent into the deep part of the trachea, so that the distal end of the flexion part and the The small air sac enters the left main bronchus. At this time, the lower side hole of the large sac is located in the main trachea and faces to the right. When the large sac is inflated, normal lung ventilation can be performed. After the flexion part has completely entered the left main bronchus, the angle factor will cause overriding, and there will be a slight resistance when inserted. At this time, it indicates that the small air bag has completely entered the left main bronchus, and the positioning of the catheter is completed. The inner tube connected to the special four-way interface and placed into the "J"-shaped spring guide core is placed into the outer tube through the placed outer tube port with the help of the optional guiding control characteristics of the targeting guide core. Ventilate the left lung. During the operation on the right side of the thoracic cavity, stick the head end of the inner tube to the right side of the inner wall of the outer tube and insert it deep. The head end of the inner tube can be controlled to face the right inner wall of the trachea, and the inner tube airbag can be confirmed to be positioned outside the side hole through the respective scale markings of the inner and outer tubes, and continue to be sent to the deep part at the same time, because the inner and outer tubes point to the right and left respectively, And enter the right and left bronchi, the bifurcation straddles the tracheal carina and is obviously obstructed, which is also a clear positioning indicator point. With a slight withdrawal of 1-2cm, the positioning of the tube is completed. Since the inner and outer tubes are on the right or left side of the main bronchus, it not only forms a straddle of the carina, but also helps to fix the catheter, and because the bifurcation is a certain distance from the carina, the chance of twisting and shearing injuries to the carina is greatly reduced . The inner tube airbag is inflated and pulled back and fixed to close the side hole, and the outer tube small airbag is inflated to complete the isolation of the two lungs and the ventilation of the left lung, as shown in Figure 6. When the right lung is ventilated during the operation on the left thoracic cavity, the small airbag of the outer tube is first inserted into the left main bronchus. When the inner tube is inserted, the head end is attached to the left side of the inner wall of the outer tube, and the airbag of the inner tube reaches the outer tube. At the far end of the side hole of the tube, the small air bag of the outer tube and the air bag of the inner tube are inflated to complete the isolation of the two lungs, and the right lung is ventilated through the side hole. the

In summary, the combined application of inner and outer tubes becomes a combined double-lumen endotracheal tube, and it can also be used in conjunction with ordinary single-lumen endotracheal tubes, so that the bronchial occlusion tube is not affected by left and right lung isolation and single-lung ventilation. limit. the

The invention is not limited to the embodiments discussed above. The above description of specific embodiments is intended to describe and illustrate the technical solutions involved in the present invention. Obvious changes or substitutions based on the revelations of the utility model should also be considered to fall within the protection scope of the utility model. The above specific implementation methods are used to reveal the best implementation methods of the utility model, so that those skilled in the art can apply various implementation modes and alternative modes of the utility model to achieve the purpose of the utility model. the

Claims (9)

1. a combination type double lumen endobronchial tube is characterized in that, comprises that targeting leads the bronchus shutoff pipe and the single cavity double sac bilateral hole endotracheal tube of core guiding; The bronchus shutoff pipe that said targeting is led core guiding has the diameter 1mm spring steel wire that is used to process " J " shape targeting to lead core;

Said single cavity double sac bilateral hole endotracheal tube length is less than 40cm;

Said single cavity double sac bilateral hole endotracheal tube far-end has a ballonet less than the 4cm place, and the ballonet far-end has black Fei Shi side opening, apart from ballonet near-end 3-5cm place air vesicle is arranged.

2. combination type double lumen endobronchial tube as claimed in claim 1 is characterized in that, said targeting is led core near-end band round handle, and far-end is less than 3cm place warpage, and angle is 30 degree; The flex points near-end is a linear; Length and conduit are adaptive.

3. combination type double lumen endobronchial tube as claimed in claim 1 is characterized in that, said targeting is led core near-end band round handle, and the flex points far-end is curved; The flex points near-end is crooked, and the flexing face is vertical with far-end flexing face, is hyperboloid; Length and conduit are adaptive.

4. combination type double lumen endobronchial tube as claimed in claim 3 is characterized in that, said targeting is led the bronchus shutoff length of tube of core guiding greater than 60cm.

5. combination type double lumen endobronchial tube as claimed in claim 4 is characterized in that, the bronchus shutoff pipe far-end that said targeting is led core guiding has inflation back diameter and holds the low pressure air bag greater than the height of 2cm, and air bag distal catheter length is less than 5cm, terminal spherical sealing.

6. combination type double lumen endobronchial tube as claimed in claim 5 is characterized in that, the bronchus shutoff tube airbag distal catheter sidewall ring wall that said targeting is led the core guiding has an amount of aperture.

7. combination type double lumen endobronchial tube as claimed in claim 6 is characterized in that, between endotracheal tube conduit two air bags of said single cavity double sac bilateral hole, tube wall has the oval side opening of about 5 * 15mm, side opening downcomer variation in diameter under the nearly air vesicle.

8. combination type double lumen endobronchial tube as claimed in claim 6 is characterized in that, conduit becomes " J " shape in air vesicle lower-side hole downcomer plastotype, and the side opening under the air vesicle is the flexing side dorsad.

9. combination type double lumen endobronchial tube as claimed in claim 1 is characterized in that, also comprises the four-way connecting interface, and interior pipe posting port has central authorities and connects, and diameter is greater than the taper shutoff medicated cap of 1mm.

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