CN208003224U - Disposable two-chamber larynx cover trachea cannula - Google Patents

Abstract

The utility model relates to a single-use double-cavity laryngeal mask tracheal intubation tube structure, which belongs to the technical field of medical equipment. The air guide tube and the upper part of the drainage tube close to the installation port are integrally formed, and the lower half of the air guide tube and the drainage tube are connected together by a fixing clip; The mounting hole, the clip body is an elastic structure, and the clip body is provided with a large arc-shaped groove for clamping the drainage tube. There are several strip-shaped inverted V-shaped protrusions on the inner wall of the drainage tube in the axial direction, stainless steel springs are embedded in the air guide tube, and a reinforcement layer is also provided in the spring layer. The inner diameter gradually becomes larger from the inflation port inward. The utility model has the advantages of simple and reasonable structure, easy manufacture, convenient and fast use, less discomfort, good drainage and air guiding effects, and has broad market space.

Description

Disposable double lumen laryngeal mask endotracheal tube

technical field

The utility model relates to a laryngeal mask structure, in particular to a disposable double-cavity laryngeal mask tracheal intubation tube structure, which belongs to the technical field of medical equipment.

Background technique

In the field of clinical airway management, artificial airway products such as laryngeal masks and tracheal intubations are often used to construct artificial airways. The laryngeal masks commonly used in clinical practice can be divided into single-lumen laryngeal masks and double-lumen laryngeal masks. The single-lumen laryngeal mask is mainly composed of a cuff, an airway tube, and an inflatable tube. In clinical application, after the laryngeal mask is placed and positioned, the inflatable device is used to infuse air into the inflatable tube through the one-way valve, and the air bag connected to the inflatable tube is inflated and inflated. A low-pressure sealing mask is formed, and then the device end of the laryngeal mask airway tube is connected to the ventilator through the tube connector, thereby helping the patient to achieve spontaneous breathing or mechanically assisted positive pressure ventilation. Compared with the single-chamber laryngeal mask, the double-chamber laryngeal mask mainly adds a drainage tube, which is mainly used to attract the regurgitated gastric juice and prevent the gastric juice from entering the lungs when the patient has gastric reflux during the use of the laryngeal mask. At present, for double-lumen laryngeal masks, the added drainage tube can effectively avoid the risk of aspiration caused by gastric reflux. However, in the existing double-chamber laryngeal mask, the drainage effect of the drainage tube is not ideal, the ventilation effect of the airway tube is not good, and the overall use effect is not ideal.

Utility model content

The purpose of this utility model is to provide a disposable double-cavity laryngeal mask tracheal intubation tube for the above-mentioned deficiencies in the prior art.

The technical scheme of the utility model is as follows: a disposable double-cavity laryngeal mask tracheal intubation tube is characterized in that it includes a cuff, a drainage tube, an airway tube, and an inflatable tube. The bottom of the installation plate is provided with an installation opening; the drainage tube passes through the installation opening, one end of the drainage tube is placed on the top of the cuff, and the other end extends outward from the installation opening, and the drainage tube is divided into inner drainage tubes by the cuff , Outer drainage tube; one end of the air guide tube is placed at the installation port, and communicates with the inside of the cuff, and the other end extends outward from the installation port; one end of the inflation tube communicates with the air bag circle, and the other end is provided with a one-way valve and an inflation port connected to a syringe;

The air guide tube and the upper half of the drainage tube near the installation port are integrally formed and fixedly connected together, and the lower half of the air guide tube and the drainage tube are connected together through a fixing clip; the fixing clip includes a base and a clip body, and the base is provided with a There is a mounting hole for the air guide tube to pass through. The clamp body is an elastic structure. The clamp body is provided with a first large arc-shaped groove for clamping the drainage tube. The radius of the first large arc-shaped groove is equal to the radius of the drainage tube. The first large arc The bottom of the groove is axially provided with a fan-shaped groove in cross-section, and the outer wall of the drainage tube is provided with a first protrusion with a fan-shaped cross-section, and the protrusion is placed in the groove;

The inner side of the mounting plate is provided with a limiting block for the inner drainage tube, and the limiting block is also provided with a large arc-shaped groove at the contact with the inner drainage tube, and the inner drainage tube is placed in the large arc-shaped groove; the inner side of the drainage tube There are several strip-shaped inverted V-shaped protrusions in the axial direction of the wall, and the inverted V-shaped protrusions are evenly distributed, and a V-shaped drainage channel is formed between two adjacent inverted V-shaped protrusions; the air guide tube is embedded with stainless steel springs, and the springs There is also a reinforcing rib layer in the layer, and the reinforcing rib layer is a hollow structure, and a number of reinforcing ribs are uniformly arranged in the cavity in the axial direction; the inside of the inflation port is provided with a rubber sealing ring, and the inner diameter of the rubber sealing ring is inward from the inflation port. Gradually increasing, the inner wall of the rubber sealing ring is provided with two rings of second protrusions, and the cross section of the protrusions is semicircular.

Finger grooves are respectively provided at positions corresponding to the position of the fixing clip base and the drainage tube.

A U-shaped support frame is also provided, and the two ends of the support frame are respectively inserted into the drainage tube and the air guide tube.

The bottom of the U-shaped support frame is provided with a U-shaped clip for fixing the inflation tube.

The side wall of the fixing clip is provided with a fixing block, and the fixing block is provided with a second large arc-shaped groove for fixing the inflation tube.

When the utility model is in use, the one-way valve is pushed back with a syringe, the air in the air bag circle is exhausted, and the laryngeal mask is clamped with a pen-holding style with one hand. There are two rings of protrusions on the inner wall of the rubber sealing ring, which is conducive to strengthening the sealing between the inflation port and the syringe, and the inner diameter of the rubber sealing ring gradually increases from the inflation port inward, so that the tightening pressure can be concentrated on the inflation port. port to prevent overtightening and difficult removal of the syringe. Finger grooves are respectively provided at the positions corresponding to the position of the fixing clip base and the drainage tube, which can be easily held by hand to tighten the laryngeal mask tightly to the mouth. The U-shaped support frame can facilitate the preservation of the utility model in transportation or other unused states, and prevent deformation and extrusion of the airway tube and the drainage tube. The U-shaped clamp at the bottom of the U-shaped support frame and the fixed block on the side wall of the fixed clip are all used to fix the inflatable tube, which is convenient for the utility model to be stored in transportation or other unused states, and prevents the inflatable tube from deforming and extruding.

The upper part of the airway tube and the drainage tube close to the installation port is integrally formed, so that the two tubes can be fixedly connected in the oral cavity, saving space and reducing the discomfort of the oral cavity; since the ports of the two tubes need to be connected to different devices, the difference between the airway tube and the drainage tube The lower half is connected together by a fixing clip, and the two tubes can be merged together according to needs, or the two tubes can be separated to keep a distance; fan-shaped grooves and fan-shaped protrusions can strengthen the firmness of the connection. The inner side of the mounting plate is provided with a limit block for the inner drainage tube, and the inner drainage tube is placed in the large arc-shaped groove, which can prevent the inner drainage tube from shaking and shifting in the oral cavity.

The inner wall of the drainage tube is axially provided with several strip-shaped inverted V-shaped protrusions, which are evenly distributed, and a V-shaped drainage channel is formed between two adjacent inverted V-shaped protrusions, which is beneficial to gastric juice drainage. The air duct is embedded with stainless steel springs, and the spring layer is also equipped with a reinforcement layer. The reinforcement layer is a hollow structure, and several reinforcement ribs are evenly arranged in the cavity in the axial direction, which can prevent the air duct from being bent, compressed and deformed. Air effect.

The utility model has the advantages of simple and reasonable structure, easy manufacture, convenient and quick use, less discomfort, good draining and air guiding effects, and has broad market space.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Figure 2 is a schematic diagram of the connection between the airway tube, the drainage tube and the fixing clip;

Fig. 3 is the structural representation of cuff;

Fig. 4 is a schematic diagram of a limit block for an inner drainage tube provided on the inner side of the mounting plate;

Fig. 5 is a schematic diagram of a U-shaped support frame;

Fig. 6 is the structural representation of airway;

Figure 7 is a schematic structural view of the fixing clip;

Figure 8 is a side view of the fixing clip;

Fig. 9 is a structural schematic diagram of a drainage tube;

Figure 10 is a schematic diagram of the inflation port;

Figure 11 is a sectional view of the rubber sealing ring.

Detailed ways

Disposable double-lumen laryngeal mask endotracheal intubation tube, including cuff 1, drainage tube 2, airway tube 3, inflatable tube 4, the cuff is composed of the front air bag circle 1-1, the back mounting plate 1-2, the mounting plate The bottom is provided with installation ports 1-3. The drainage tube passes through the installation port. One end of the drainage tube is placed on the top of the cuff, and the other end extends outward from the installation port. The cuff divides the drainage tube into an inner drainage tube 2-1 and an outer drainage tube 2-2. One end of the air guiding tube is placed at the installation port and communicates with the inside of the cuff, and the other end extends outward from the installation port. One end of the inflation tube communicates with the airbag ring, and the other end is provided with a one-way valve 4-1 and an inflation port 4-2 connected with the syringe.

The upper half of the airway tube and the drainage tube near the installation port are integrally formed and fixedly connected together, and the lower half of the airway tube and the drainage tube are connected together through the fixing clip 5 . The fixing clip includes a base 5-1 and a clip body 5-2, the base is provided with an installation hole 5-3 for the air guide tube to pass through, the clip body is an elastic structure, and the clip body is provided with a first large circle for clamping the drainage tube Arc groove 5-4, the radius of the first large arc groove is equal to the radius of the drainage tube, the bottom of the first large arc groove is axially provided with a fan-shaped groove 5-5 with a cross section, and the outer wall of the drainage tube is provided with a cross section of The fan-shaped first protrusion 2-3 is placed in the groove.

The inside of the mounting plate is provided with a limiting block 1-4 for the inner drainage tube, and the limiting block is also provided with a large arc-shaped groove 1-5 at the contact with the inner drainage tube, and the inner drainage tube is placed in the large arc-shaped groove. The inner wall of the drainage tube is axially provided with several strip-shaped inverted V-shaped protrusions 2-4, the inverted V-shaped protrusions are evenly distributed, and a V-shaped drainage channel 2-5 is formed between two adjacent inverted V-shaped protrusions. A stainless steel spring 3-1 is embedded in the air duct, and a reinforcing rib layer 3-2 is also arranged in the spring layer. The reinforcing rib layer is a hollow structure, and several reinforcing ribs 3-4 are evenly arranged in the axial direction of the cavity 3-3; The inside of the inflation port is provided with a rubber sealing ring 4-3, the inner diameter of the rubber sealing ring gradually becomes larger from the inflation port, and the inner wall of the rubber sealing ring is provided with two rings of second protrusions 4-4, the cross section of which is semicircle.

Finger grooves 5-6 are respectively provided at the positions corresponding to the position of the fixing clip base and the drainage tube, and a U-shaped support frame 6 is also provided, and the two ends of the support frame are respectively inserted into the drainage tube and the air guide tube. The bottom of the U-shaped support frame is provided with a U-shaped clip 6-1 for fixing the inflation tube, and the side wall of the clip is provided with a fixing block 5-7, and the fixing block is provided with a second large arc-shaped groove 5-1 for fixing the inflation tube 8.

Claims (5)

1. disposable two-chamber larynx cover trachea cannula, characterized in that including cover capsule (1), drainage tube (2), gas-guide tube (3), fill Tracheae (4), the cover capsule are made of the mounting plate (1-2) at positive air bag ring (1-1), back, and the mounting plate bottom is equipped with Installing port (1-3)；The drainage tube passes through installing port, drainage tube one end port to be placed at the top of cover capsule, other end self installation mouth to Drainage tube is divided into inside drainage tube (2-1), outer draft tube (2-2) by outer extension, cover capsule；Described gas-guide tube one end is placed in installation It at mouthful, and is connected to the intracapsular portion of cover, other end self installation mouth extends outwardly；Described gas tube one end is connected to air bag ring, another End is equipped with check valve (4-1) and the inflation port (4-2) being connected with syringe；

The first half of the gas-guide tube with drainage tube close to installing port is integrally formed, and is fixed together, gas-guide tube and drainage The lower half of pipe is linked together by geometrical clamp (5)；The geometrical clamp includes pedestal (5-1) and clamp (5-2), and pedestal is equipped with The mounting hole (5-3) passed through for gas-guide tube, clamp are elastic construction, and clamp is equipped with the first great circle arc for drainage tube to be clamped Slot (5-4), the first great circle arc groove radius is equal with drainage tube radius, and it is fan that the first great circle arc slot bottom, which is axially arranged with cross section, The groove (5-5) of shape, the drainage pipe outer wall are equipped with first raised (2-3) that fan-shaped cross section, which is placed in groove；

It is equipped with inside on the inside of the mounting plate and drains effective limited block (1-4), the limited block is same with inside drainage tube contact position Sample is equipped with a great circle arc groove (1-5), and inside drainage tube is placed in the great circle arc groove；The drainage tube madial wall is axially arranged with Several strips are reverse V-shaped raised (2-4), and reverse V-shaped protrusion is uniformly distributed, and a V-type drainage channel is formed between adjacent two reverse V-shaped protrusion (2-5)；The gas-guide tube is embedded with stainless steel spring (3-1), and reinforcing rib layer (3-2) is additionally provided in spring layer, and reinforcing rib layer is Hollow structure is axially uniformly provided with several reinforcing ribs (3-4) in cavity (3-3)；It is close that the inflation port is internally provided with rubber The interior inflation port without leave of seal (4-3), rubber seal inwardly becomes larger, and the rubber seal madial wall is equipped with two circles The cross section of second raised (4-4), the protrusion are semicircle.

2. disposable two-chamber larynx cover trachea cannula according to claim 1, characterized in that the geometrical clamp pedestal with Drainage tube position corresponding position is respectively equipped with finger recess (5-6).

3. disposable two-chamber larynx cover trachea cannula according to claim 1, characterized in that be additionally provided with U-shaped supporting rack (6), which is inserted into drainage tube, in gas-guide tube respectively.

4. disposable two-chamber larynx cover trachea cannula according to claim 3, characterized in that the U-shaped supporting rack bottom Portion is equipped with U-shaped folder (6-1), for fixing gas tube.

5. disposable two-chamber larynx cover trachea cannula according to claim 1, characterized in that the geometrical clamp side wall is set There are fixed block (5-7), fixed block to be equipped with the second largest arc-shaped slot (5-8) for fixing gas tube.