Double-bronchus ventilation catheter

Abstract

The utility model mainly relates to a tracheal catheter for thoracic surgery, and discloses a double-bronchial ventilation catheter which comprises a tracheal catheter body and a catheter cuff arranged on the outer wall of the tracheal catheter body, the catheter cuff is connected with a catheter cuff inflation tube, and the lower end of the tracheal catheter body is divided into two bronchial catheter bodies with the same size. Each bronchial catheter is provided with a bronchial catheter outer cuff and a bronchial catheter inner cuff, the bronchial catheter inner cuff and the bronchial catheter outer cuff are connected with a bronchial catheter cuff inflation tube, and the bronchial catheter inner cuff can protrude outwards to be tightly attached to the inner wall of the bronchial catheter when the bronchial cuff is inflated, so that the bronchial catheter can be sealed. The design has the advantages of simplicity in operation, accuracy in alignment and few clinical complications.

Description

Technical Field

[0001] The utility model relates to the technical field of medical auxiliary equipment, in particular to a double bronchial ventilation catheter. Background Art

[0002] Thoracic surgery requires unilateral lung ventilation. Existing technologies include double-lumen endobronchial tubes and bronchial occluders. Both are limited in clinical application by numerous issues, including: 1. The large diameter of the double-lumen tube can easily cause airway damage; 2. The double-lumen tube and occluder are evenly spaced, increasing operational difficulty; and 3. During positioning, the bronchoscope and occluder interfere with each other, making them susceptible to damage or misalignment.

[0003] Many improvements to double-lumen tubes have been proposed, including one filed by Zeng Juhuazi in July 2016 and published in April 2018. The patent, with application number 201610602674.8, is titled "Single-lumen Double-Cuff Endobronchial Tube." This patent focuses on the main tube side holes and bronchial elastic mold. Its advantage is a smaller tube lumen diameter, making it suitable for patients of different age groups. However, because the ventilation ports are all located on the main tube side holes, there is still a risk of misalignment or adhesion to the wall, making operation more difficult.

[0004] Therefore, it is necessary to develop a new type of endotracheal tube that is easy to operate, can be intubated in one go, and can be positioned by simple auscultation. Utility Model Content

[0005] The advantages of the utility model are simple operation, accurate positioning and few clinical complications.

[0006] The technical solution adopted by the utility model includes a tracheal tube and a catheter cuff arranged on the outer wall of the tracheal tube, the catheter cuff is connected to the catheter cuff inflation tube, the lower end of the tracheal tube is divided into two bronchial tubes of equal volume, each bronchial tube is provided with a bronchial tube outer cuff and an inner cuff, the inner and outer cuffs of the bronchial tube are connected to the bronchial tube cuff inflation tube, and the inner cuff of the bronchial tube can expand inward and adhere to the inner wall of the bronchial tube when the bronchial cuff is inflated, thereby sealing the bronchial tube.

[0007] Preferably, the lower ends of the tracheal tubes are two bronchial tubes of equal shape.

[0008] Preferably, the tip of the bronchial tube is provided with a guide hook, so that the left and right bronchial tubes can enter the left and right bronchi more easily.

[0009] Preferably, the two bronchial tubes are connected by a simple band, and when the left and right bronchial tubes slide into their respective bronchi, the simple band naturally breaks due to the tension.

[0010] Preferably, the inner and outer balloons of the bronchial tube can be inflated by a bronchial tube inflation tube.

[0011] According to the technical solution of the utility model, the left and right bronchial tubes are naturally slid into the left and right bronchi under the guidance of the guide hook, and the requirements of ventilation of the left single lung, the right single lung or both lungs can be achieved at the same time. It has the advantages of simple operation, accurate positioning, small damage and few clinical complications, thereby providing a safer guarantee for clinical work. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the overall structure of a double bronchial ventilation catheter;

[0013] Figure 2 For attachment Figure 1 Enlarged view of part A;

[0014] Figure 3 This is a diagram of the state when the double bronchial ventilation tube is working on the left lung;

[0015] Figure 4 This is a diagram of the state when the double bronchial ventilation tube is working on the right lung.

[0016] 1. Endotracheal tube, 2. Catheter cuff, 3. Catheter cuff inflation tube, 4. Left bronchial tube, 5. Right bronchial tube, 6. Left bronchial tube outer cuff, 7. Right bronchial tube outer cuff, 8. Left endobronchial cuff, 9. Right endobronchial cuff, 10. Left bronchial tube cuff inflation tube, 11. Right bronchial tube cuff inflation tube, 12. Guide hook, 13. Slit, 14. Simple belt. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be further described below with reference to the accompanying drawings in the embodiments of the present invention:

[0018] Example 1 According to Figures 1 to 3, double bronchial ventilation catheter, including a tracheal tube 1 and a catheter cuff 2 arranged on the outer wall of the tracheal tube 1, the catheter cuff 2 is connected to the catheter cuff inflation tube 3, the lower end of the tracheal tube is divided into two equal volumes of left bronchial tube 4 and right bronchial tube 5, the left bronchial tube 4 is provided with a left bronchial tube outer sleeve 6 and a left bronchial cuff 8, the left bronchial tube outer sleeve 6 and the left bronchial cuff 8 are connected to the left bronchial tube cuff inflation tube 10, the right bronchial tube 5 is provided with a right bronchial tube outer sleeve 7 and a right bronchial tube The endotracheal cuff 9, the right bronchial tube outer cuff 7 and the right endobronchial cuff 9 are connected to the right bronchial tube cuff inflation tube 11. The left endobronchial cuff 8 can protrude outward and fit closely to the inner wall of the left bronchial tube when the left bronchial tube cuff inflation tube 10 is inflated, thereby sealing the left bronchial tube 4. The right endobronchial cuff 9 can protrude outward and fit closely to the inner wall of the right bronchial tube when the right bronchial tube cuff inflation tube 11 is inflated, thereby sealing the right bronchial tube 5. The tips of the left bronchial tube 4 and the right bronchial tube 5 are provided with guide hooks 12.

[0019] During surgery, a dual endobronchial ventilation catheter can be used for bilateral thoracic surgery. After the endotracheal tube is inserted, the guide hook reaches the carina, and the left and right endobronchial tubes naturally separate and slide into the left and right mainstem bronchi. Simultaneously, the simple band splits, increasing the angle between the left and right endobronchial tubes. When the apex of the split reaches the carina, the left and right endobronchial tubes are positioned accordingly. When the catheter cuff is inflated, while the inner and outer cuffs of the left and right endobronchial tubes are not inflated, bilateral lung ventilation is achieved. When the catheter cuff is inflated, the inner and outer cuffs of the right endobronchial tube are inflated, while the inner and outer cuffs of the left endobronchial tube are not inflated, left-sided lung ventilation is achieved.

[0020] Example 2 According to Figure 1 、 2 , 4, double bronchial ventilation catheter, comprising a tracheal tube 1 and a catheter cuff 2 arranged on the outer wall of the tracheal tube 1, the catheter cuff 2 is connected to the catheter cuff inflation tube 3, the lower end of the tracheal tube is divided into two equal volumes of left bronchial tube 4 and right bronchial tube 5, the left bronchial tube 4 is provided with a left bronchial tube outer sleeve 6 and a left bronchial cuff 8, the left bronchial tube outer sleeve 6 and the left bronchial cuff 8 are connected to the left bronchial tube cuff inflation tube 10, the right bronchial tube 5 is provided with a right bronchial tube outer sleeve 7 and a right The endobronchial cuff 9, the right bronchial catheter outer cuff 7 and the right endobronchial cuff 9 are connected to the right bronchial catheter cuff inflation tube 11. The left endobronchial cuff 8 can protrude outward and tightly adhere to the inner wall of the left bronchial catheter when the left bronchial catheter cuff inflation tube 10 is inflated, thereby sealing the left bronchial catheter 4. The right endobronchial cuff 9 can protrude outward and tightly adhere to the inner wall of the right bronchial catheter when the right bronchial catheter cuff inflation tube 11 is inflated, thereby sealing the right bronchial catheter 5. The tips of the left bronchial catheter 4 and the right bronchial catheter 5 are provided with guide hooks 12.

[0021] During surgery, a double endobronchial ventilation catheter can be used for bilateral thoracic surgery. After the endotracheal tube is inserted, the guide hook reaches the carina, and the left and right endobronchial tubes naturally separate and slide into the left and right mainstem bronchi. Simultaneously, the simple band splits, increasing the angle between the left and right endobronchial tubes. When the apex of the split reaches the carina, the left and right endobronchial tubes are positioned accordingly. When the catheter cuffs are inflated, the inner and outer cuffs of the left endobronchial tube are inflated, while the inner and outer cuffs of the right endobronchial tube are not inflated, ventilation of the right lung is achieved. In summary, this double endobronchial ventilation catheter has strong clinical feasibility, is easy to position, and is simple to operate, making it convenient for medical personnel to use.

Claims

1. A double bronchial ventilation catheter, comprising a tracheal catheter (1) and a catheter cuff (2) arranged on the outer wall of the tracheal catheter (1), the catheter cuff (2) being connected to a catheter cuff inflation tube (3), the lower end of the tracheal catheter being divided into two equal-volume left bronchial catheters (4) and right bronchial catheters (5), the left bronchial catheter (4) being provided with a left bronchial catheter outer sleeve (6) and a left bronchial cuff (8), the left bronchial catheter outer sleeve (6) and the left bronchial cuff (8) being connected to the left bronchial catheter cuff inflation tube (10), the right bronchial catheter (5) being provided with a right bronchial catheter outer sleeve (7 ) and the right endobronchial cuff (9), the right endobronchial tube outer cuff (7) and the right endobronchial cuff (9) are connected to the right endobronchial tube cuff inflation tube (11), the left endobronchial cuff (8) can protrude outwards and adhere closely to the inner wall of the left endobronchial tube when the left endobronchial tube cuff inflation tube (10) is inflated, thereby sealing the left endobronchial tube (4), the right endobronchial cuff (9) can protrude outwards and adhere closely to the inner wall of the right endobronchial tube when the right endobronchial tube cuff inflation tube (11) is inflated, thereby sealing the right endobronchial tube (5), and the tips of the left endobronchial tube (4) and the right endobronchial tube (5) are provided with guide hooks (12).

2. The double bronchial ventilation catheter according to claim 1, characterized in that The lower end of the tracheal tube (1) is divided into a left bronchial tube (4) and a right bronchial tube (5) of equal volume.

3. The double bronchial ventilation catheter according to claim 2, characterized in that The length of the slit (13) between the left endobronchial tube (4) and the right endobronchial tube (5) is 3.5 cm.

4. The double bronchial ventilation catheter according to claim 2, characterized in that The tips of the left bronchial tube (4) and the right bronchial tube (5) are provided with a guide hook (12).

5. The double bronchial ventilation catheter according to claim 3, characterized in that The cracks are connected by simple belts (14).

6. The double bronchial ventilation catheter according to claim 2, characterized in that After the left bronchial tube (4) and the right bronchial tube (5) are opened, the included angle thereof is 65° to 80°.

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