CN107213543A - The special-shaped throat cover air flue conduit pipe of intubation - Google Patents

Abstract

The invention provides an intubation special-shaped laryngeal mask airway catheter, which comprises a cuff, a sputum collection cavity is arranged inside the cuff, an inflatable tube is arranged at the lower end of the cuff, the upper end of the inflatable tube is connected with the cuff, and the lower end of the inflatable tube is It is connected with the indicator bag and the one-way valve in turn. The lower end of the cuff is also provided with an airway catheter. The airway catheter includes an upper airway catheter and a lower airway catheter. The upper end of the upper airway catheter is connected with the cuff. The inside of the catheter is provided with a ventilation channel and a drainage channel. The lower end of the upper airway catheter is provided with a ventilation hole and a drainage hole. The ventilation hole is connected with the ventilation channel, and the drainage hole is connected with the drainage channel. The ventilation channel at the lower end of the lower airway catheter is connected, the other end of the lower airway catheter is provided with an auxiliary interface, the side wall of the other end of the lower airway catheter is provided with a breathing tube, and the end of the breathing tube is provided with a machine end interface. When the invention is connected to the ventilator, it can also be connected to other pipelines, which increases the flexibility of the operation of the laryngeal mask.

Description

Intubation special-shaped laryngeal mask airway tube

technical field

The invention belongs to the technical field of medical devices, and in particular relates to a special-shaped laryngeal mask airway catheter for intubation.

Background technique

The dual-chamber laryngeal mask currently on the market has the functions of ventilation and sputum suction. There is no separate breathing circuit, and the catheter connector is in a straight line.

Application number: 201320187949.8 discloses an airway tube for a laryngeal mask and a laryngeal mask using the airway tube. The purpose is to provide a laryngeal mask airway tube and a drainage-type laryngeal mask with a simple structure and low cost, which can be easily inserted into the larynx, and the operation is convenient and quick, so as to reduce the additional possible damage caused by the doctor's hard intubation to the patient. The laryngeal mask airway tube is provided with a ventilation cavity in the airway tube, and the cross-sectional contour line shape of the airway tube is oval or oblong.

The airway catheter of the laryngeal mask in the prior art is in a straight line, can only be connected to the laryngeal mask, and can be connected to other pipelines, so the application range is narrow.

Contents of the invention

The purpose of the present invention is to provide a special-shaped laryngeal mask airway catheter with simple structure and simple operation. The joint is at right angles to the pipeline, which is used for patients with special-shaped intubation. The separately equipped breathing pipeline has a three-way structure , while the laryngeal mask connector can be connected, other pipelines can also be connected, which increases the choice space of medical staff and also increases the choice space of medical staff.

Technical scheme of the present invention is:

A special-shaped laryngeal mask airway catheter for intubation, including a cuff, a sputum collection cavity is arranged inside the cuff, an inflatable tube is provided at the lower end of the cuff, the upper end of the inflatable tube is connected with the cuff, and the lower end of the inflatable tube is sequentially connected with the indicator The bag is connected with the one-way valve, the lower end of the cuff is also provided with an airway catheter, the airway catheter includes an upper airway catheter and a lower airway catheter, the upper end of the upper airway catheter is connected with the cuff, and the inner part of the upper airway catheter is There are ventilation channels and drainage channels. The lower end of the upper airway catheter is provided with a ventilation hole and a drainage hole. The ventilation hole is connected with the ventilation channel, and the drainage hole is connected with the drainage channel. The other end of the lower airway catheter is provided with an auxiliary interface, the side wall of the other end of the lower airway catheter is provided with a breathing tube, and the end of the breathing tube is provided with a machine port.

Cuff, air tube, and airway catheter are made of medical PVC or silicone.

The lower airway tube is an "L"-shaped tube, the vertical part of the "L"-shaped tube is connected with the ventilation channel at the lower end of the upper airway tube, and the horizontal part of the "L"-shaped tube is provided with a breathing tube.

The machine end interface includes an inner interface of a truncated cone-shaped side wall and an outer interface of a truncated cone-shaped side wall, the large end of the inner interface is connected with the small end of the outer interface, the inner interface is inserted into the breathing circuit, and the outer wall of the inner interface is connected to the small end of the outer interface. Interference fit between the inner walls of the breathing tube, and the outer interface is connected with the machine.

Two fins are vertically arranged on the outer wall of the large end of the inner interface of the machine end interface, and the wings are symmetrically arranged on both sides of the large end of the inner interface.

The beneficial effect of the present invention is that the end of the laryngeal mask is at right angles to the pipeline, and is connected with the breathing circuit and the machine end interface, which can be connected to the ventilator and other pipelines at the same time, which increases the choice space of the medical staff. It also increases the flexibility of laryngeal mask operation.

Description of drawings

Fig. 1 is the structural schematic diagram of the laryngeal mask with intubation special-shaped laryngeal mask airway tube of the present invention;

Fig. 2 is the side view of the special-shaped laryngeal mask airway catheter laryngeal mask with intubation of the present invention;

Fig. 3 is a schematic diagram of the machine end interface structure of the intubation special-shaped laryngeal mask airway catheter of the present invention

Fig. 4 is a top view of the laryngeal mask machine end interface of the intubation special-shaped laryngeal mask airway catheter of the present invention

In the picture:

1. Cuff 2. Sputum collection cavity 3. Inflatable tube 4. Indicator bag 5. One-way valve

6. Ventilation hole 7. Drainage hole 8. Airway tube 81. Upper airway tube 82. Lower airway tube

9. Breathing circuit 10. Auxiliary interface 11. Machine end interface 111. Internal interface 112. External interface

113. Wings

detailed description

As shown in Fig. 1 and Fig. 2, a special-shaped laryngeal mask airway catheter for intubation according to the present invention comprises a cuff 1, a sputum collection chamber 2 is provided inside the cuff 1, and an inflatable tube 3 is provided at the lower end of the cuff 1 for inflation. The upper end of the tube 3 is connected to the cuff 1, and the lower end of the inflation tube 3 is connected to the indicator bag 4 and the one-way valve 5 in turn. The lower end of the cuff 1 is also provided with an airway catheter 8, which includes the upper airway The catheter 81 and the lower airway catheter 82, the upper end of the upper airway catheter 81 is connected to the cuff 1, the upper airway catheter 81 is provided with a ventilation channel and a drainage channel, and the lower end of the upper airway catheter 81 is provided with a ventilation hole 6 and a drainage channel. Hole 7, ventilation hole 6 are connected with the ventilation channel, drainage hole 7 is connected with the drainage channel, one end of the lower airway catheter 82 is connected with the ventilation channel at the lower end of the upper airway catheter 81, and the other end of the lower airway catheter 82 Auxiliary interface 10 is arranged on the upper part, breathing pipeline 9 is arranged on the side wall of the other end of lower airway catheter 82, and the end of breathing pipeline 9 is provided with machine end interface 11.

The invention isolates the ventilation channel and the drainage channel to prevent gastric reflux and aspiration.

The lower airway tube 82 is an "L" shaped tube, the vertical part of the "L" shaped tube is connected to the ventilation channel at the lower end of the upper airway tube 81, and the horizontal part of the "L" shaped tube is provided with a breathing tube 9.

The machine end interface 11 comprises the inner interface 111 of the truncated cone-shaped side wall and the outer interface 112 of the truncated cone-shaped side wall, the large end of the inner interface 111 is connected with the small end of the outer interface 112, and the inner interface 111 is inserted into the breathing circuit 9, The outer wall of the inner interface 111 is in interference fit with the inner wall of the breathing tube 9, and the outer interface 112 is connected with the machine.

Two fins 113 are arranged vertically on the outer wall of the large end of the inner interface 111 of the machine end interface 11 , and the wings 113 are symmetrically arranged on both sides of the large end of the inner interface 111 .

The upper airway catheter 81 has a curved radian, which is suitable for the physiological structure design of the oropharynx of the human body and is easy to insert.

The machine end interface 11 is connected with the ventilator to form a breathing circuit.

An embodiment of the present invention has been described in detail above, but the content described is only a preferred embodiment of the present invention, and cannot be considered as limiting the implementation scope of the present invention. All equivalent changes and improvements made according to the application scope of the present invention shall still belong to the scope covered by the patent of the present invention.

Claims (4)

1. A special-shaped laryngeal mask airway catheter for intubation, comprising a cuff, a sputum collection cavity is provided inside the cuff, an inflatable tube is provided at the lower end of the cuff, the upper end of the inflatable tube is connected with the cuff, and the lower end of the inflatable tube is sequentially Connected with the indicator bag and the one-way valve, the lower end of the cuff is also provided with an airway catheter, the airway catheter includes an upper airway catheter and a lower airway catheter, and the upper end of the upper airway catheter is connected with the cuff, characterized in that: The upper airway catheter is provided with a ventilation channel and a drainage channel, and the lower end of the upper airway catheter is provided with a ventilation hole and a drainage hole. The ventilation hole is connected with the ventilation channel, and the drainage hole is connected with the drainage channel. One end of the lower airway catheter It is connected with the ventilation channel at the lower end of the upper airway tube, the other end of the lower airway tube is provided with an auxiliary interface, the side wall of the other end of the lower airway tube is provided with a breathing tube, and the end of the breathing tube is equipped with a machine terminal interface. 2. A kind of intubation special-shaped laryngeal mask airway tube according to claim 1, characterized in that: the lower airway tube is an "L" shaped tube, and the vertical part of the "L" shaped tube is ventilated with the lower end of the upper airway tube. The channels are connected, and the horizontal part of the "L"-shaped tube is provided with a breathing tube. 3. A kind of intubation special-shaped laryngeal mask airway catheter according to claim 2, characterized in that: the machine end interface comprises an inner interface of a frustum-shaped side wall and an outer interface of a frusto-conical side wall, and the large diameter of the inner interface is The end is connected with the small end of the outer interface, the inner interface is inserted into the breathing circuit, the outer wall of the inner interface is in interference fit with the inner wall of the breathing circuit, and the outer interface is connected with the machine. 4. A special-shaped laryngeal mask airway catheter for intubation according to claim 3, characterized in that: two fins are vertically arranged on the outer wall of the large end of the inner interface of the machine end interface, and the wings are symmetrically arranged inside Both sides of the big end of the interface.