CN107349502A - A kind of oropharyngeal airway with gas source connector - Google Patents

Abstract

The invention discloses an oropharyngeal airway with an air source joint, which is an integral structure composed of a flat strip-shaped airway with a flange and an air source joint located on the top of the flange, wherein the airway is composed of a straight pipe section It is composed of a curved pipe section and a flange on the top of the straight pipe section. There are grooves on both sides of the ventilation cavity of the air passage; small holes are provided on both sides of the flange on the top of the straight pipe section; the air source joint is 15mm from the upper part. The conical joint is composed of a lower intubation tube, and the lower intubation tube is inserted and fixed in the straight pipe section of the airway; the opening width of the groove is smaller than the bottom width; the bottom end of the curved pipe section is an arc-shaped end. Beneficial effect: the side wall of the ventilation cavity has the function of supporting the straight pipe section, so that the product has stronger anti-occlusion force. The gas source connector can be directly connected with the connector of the extracorporeal ventilator and the connector of the oxygen delivery tube for oxygen delivery; the sputum suction tube and the narrow tubular medical consumables of the fiberoptic bronchoscope can be inserted into the throat of the patient through the groove. Secure the snorkel with straps threaded through the two small holes in the flange.

Description

An oropharyngeal airway with an air source connector

technical field

The invention relates to an oropharyngeal airway, in particular to an oropharyngeal airway with an air source connector, belonging to the technical field of medical devices.

Background technique

The oropharyngeal airway, also known as the oropharyngeal airway, is a non-tracheal tube airway. It is the simplest, most effective and economical airway assisting device. Opening the airway is widely used in major hospitals. The general oropharyngeal airway is a hard flat tubular artificial airway made of elastic rubber or plastic, which is curved, and its curvature is similar to that of the tongue and soft palate. Its structure is mainly composed of three parts: the flange, the tooth pad part and the curved airway body. The oropharyngeal airway produced on the market has some following deficiencies during clinical use:

1) Although the oropharyngeal airways produced on the market are easy to operate and use in clinical applications, their functions are single, and they can only form a smooth airway for the oropharynx to prevent suffocation caused by the tongue falling backward. In the treatment or recovery period, it is not only difficult to give oxygen, sputum suction, and anesthesia in emergency situations, but also needs to replace consumables. The operation is cumbersome, wastes time, causes discomfort to the patient, and is not conducive to treatment;

2) The curved flat tube-shaped airway body of the oropharyngeal airway currently on the market is easily bitten by the patient and deformed, and an additional bushing is required to support the nozzle, resulting in a complex structure.

3) Placing the oropharyngeal airway will cause discomfort to the patient. If it is not properly fixed, the pipeline will often protrude. If the oropharyngeal airway prolapses without timely detection and treatment, the patient will be in danger. The oropharyngeal airway currently on the market is usually pasted and fixed with medical adhesive tape after being inserted, but the adhesive tape is not firmly pasted, and it is easy to lose its viscosity after long-term use, so it cannot solve the problem well.

In view of the above-mentioned shortcomings that the oropharyngeal airway exists, engineers and technicians in the medical device industry have done research and development work on the structural improvement of the oropharyngeal airway, and have been disclosed by the following patent documents:

1. Chinese utility model patent, authorized announcement number CN205460309U (authorized announcement date 2016.08.17) discloses "an oropharyngeal airway that can prevent biting and tongue falling back", its structure: including a pharyngeal bending tube machine connected at one end The dental cushion tube of the present invention is characterized in that the section of the pharyngeal curved tube and the dental cushion tube in the radial direction is elliptical, and the outer tube wall of the pharyngeal curved tube extending into the human pharynx is fixedly linked with an upper The air cushion and the lower air cushion, the upper air cushion and the lower air cushion are connected to the inflation valve through the inflatable tube, the support block is arranged in the tooth cushion tube to prevent the tooth cushion tube, and one end of the tooth cushion tube is also provided to extend into the The oxygen tube of the pharyngeal bend tube, the oxygen tube is compressed and fixed by the elastic pressing piece connected to the support block, and the other end of the oxygen tube extends out of the tooth pad tube and can be communicated with the external feeding pipeline.

Its advantages: effectively solve the problem of tongue drop.

But the disadvantages are: the structure is more complicated, and there are too many accessories. When it is inserted into the pipeline, the accessories will affect the use of medical staff. After insertion, it is necessary to inflate the airbag, which is not conducive to quick rescue of patients.

2. Chinese utility model patent, authorized announcement number CN203123243U (authorized announcement date 2013.08.14) discloses "improved oropharyngeal airway", including airway and tube wing, and the airway is inserted and fixed on the central hole of the tube wing. It is characterized in that: the two ends of the fixing band are respectively connected to the side edges of the pipe wings.

Its advantages: the oropharyngeal airway can be fixed with a fixation belt to prevent it from prolapse.

But the disadvantages: the oropharyngeal airway with a fixed belt, the fixed belt is long and drooping, which affects the operation of the medical staff when inserting the pipeline, and the patient's age and head circumference are different, the applicability of the fixed belt is not strong, and the use remains unchanged.

How to safely and reliably solve the problems in the above-mentioned prior art has become a matter of great concern to the medical device technology industry, and is also a subject that engineers and technicians in the field of medical device technology need to develop and research urgently.

Contents of the invention

The purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art and provide an oropharyngeal airway with an air source connector, which is composed of a flat strip-shaped airway with a flange and an air source connector at the top of the flange An integrated structure, wherein: there are symmetrical small holes on both sides of the flange, the inner cavity of the air passage is a ventilation cavity, and grooves are provided on both sides of the ventilation cavity; the integrated structure In the body, the air source connector set can be directly connected to the connector of the extracorporeal ventilator and the connector of the oxygen delivery tube for oxygen delivery, so as to solve the operation of oxygen supply, sputum suction and anesthesia for the patient in case of an emergency during the treatment or recovery period. It wins precious time for the patient's treatment; in the integrated structure, the grooves designed on both sides of the ventilation channel are used for thin tubular medical consumables such as sputum suction tube and fiberoptic bronchoscope, which can be inserted into the patient's throat through the groove A way is provided; in the integrated structure body, relatively symmetrical small holes are designed, and the airway is fixed through the bandages penetrating the small holes. The above-mentioned integral structure thus overcomes the shortcomings in the existing above-mentioned technologies.

In order to achieve the above object, the present invention adopts the following technical solutions:

An oropharyngeal airway with an air source connector, which is an airway with a flange, is characterized in that its structure is composed of a flat strip-shaped airway with a flange and an air source connector at the top of the flange. structure, where:

The air passage is composed of a straight pipe section, a curved pipe section and a flange at the top of the straight pipe section, and the structure of the air passage is composed of a vent chamber and grooves on both sides of the vent chamber;

The flange, which is placed on the top of the straight pipe section, is provided with symmetrical small holes on both sides of the flange;

The gas source joint is composed of an upper 15mm conical joint and a lower intubation tube, and the lower intubation tube is inserted and connected and fixed in the straight pipe section of the airway.

The grooves on both sides of the air passage of the air passage are directly connected to the symmetrical small holes on the flange, and the side walls of the groove are inclined and bent towards the center to form a structure with an opening width smaller than the width of the bottom, wherein the opening width is 1mm to 5mm, and the bottom width is 5mm to 10mm, allowing thin tubular medical consumables such as suction tubes and fiberoptic bronchoscopes to pass through.

The curvature of the curved pipeline section is π/2rad˜3π/4rad.

The curved pipe section is designed as an arc-shaped port at its bottom end, and its arc-shaped lines smoothly extend to both sides of the curved pipe section.

The airway is made of medical polypropylene, or polyethylene, or polycarbonate, or one of silicone rubber materials.

The air source connector is made of medical polypropylene, or polyethylene, or polycarbonate, or one of silicone rubber materials.

Beneficial effects of the present invention

Compared with the prior art, the present invention has the beneficial effect of realizing the following multiple functions in addition to the general mouth smoke airway that can open the airway and make the patient ventilate smoothly:

1) The designed gas source connector, its 15mm conical connector can be connected with the 15mm standard gas source connector of respiratory anesthesia equipment. When a patient needs to be connected to a ventilator in an emergency, the breathing interface can be directly inserted into the conical joint of the air source connector of the oropharyngeal airway, which is easy to operate, saves rescue time and improves efficiency; if the patient needs oxygen inhalation during recovery, It can also be connected to oxygen inhalation equipment through standard connectors, and at the same time monitor the end-breathing carbon dioxide concentration to control the oxygen inhalation concentration.

2) There are small holes on both sides of the flange, which are used to insert the straps. According to the condition of the patient, the medical staff selects a strap of appropriate length such as a rope or an elastic rubber band, and inserts it into the small hole. If the strap is damaged, it can be replaced in time.

3) The grooves on both sides of the ventilation cavity in the inner cavity of the airway can allow medical suction tubes or bronchoscopes to pass through for medical staff to facilitate the care and inspection of patients, and the groove is designed to have an opening smaller than the bottom edge. The opening is small, so that the inserted thin tube medical consumables can be better fixed in the groove and will not slip out. The design of the groove also increases the overall air intake of the air channel.

4) The structural shape at the bottom end of the curved pipeline section in the oropharyngeal airway structure is designed as an arc-shaped port. When the present invention is applied to a patient, the arc-shaped end is the end that first enters the patient's oral cavity, and is designed to be arc-shaped The port is more convenient for airway insertion and better protects the patient's throat from being scratched.

5) The straight pipe section of the airway is the occlusal part of the teeth when the airway is placed in the patient's mouth. Since the airway is composed of the ventilation cavity in the inner cavity and the grooves on both sides, the side wall of the ventilation cavity plays a role in supporting the straight pipeline section. Make this product more resistant to bite.

Description of drawings

Fig. 1 is the schematic sectional view of structure of the present invention;

Fig. 2 is the front schematic diagram of structure of the present invention;

Fig. 3 is a top view schematic diagram of the structure of the present invention;

Fig. 4 is a perspective view of the groove in Fig. 1;

Fig. 5 is a front view of the structure of the gas source connector in Fig. 1;

Fig. 6 is a schematic diagram of the insertion method of the present invention;

Figure 6-1 is a schematic diagram of the effect of the present invention after being inserted into the oropharynx;

Figure 6-2 is a schematic diagram of the state of the strap passing through the small hole of the present invention;

Fig. 7 is a schematic diagram of the connection state between the gas source connector of the present invention and the universal connector of the respiratory anesthesia equipment;

FIG. 8 is a schematic diagram of the state of the connection of the air source joint and the conversion joint of the present invention.

In Fig. 1: 1 air channel; 1-1 flange; 1-3 straight pipe section; 1-4 curved pipe section; 1-5 air cavity; 2 air source connector; 2 lower intubation.

In Fig. 2: 1 air duct; 1-1 flange; 1-2 small hole; 2 air source connector; 1-7 arc-shaped port.

In Fig. 3: 1 air channel; 1-1 flange; 1-3 straight pipe section; 1-4 curved pipe section; 2 air source joint; 1-6 groove.

In Fig. 4: 1 air channel; 1-1 flange; 1-2 small hole; 1-6 groove; 2 air source connector.

In Fig. 5: 2 gas source connectors; 2-1 upper 15mm conical connector; 2-2 lower intubation.

In Fig. 6: 1 air duct; 2 air source connector; 1-7 arc-shaped ports.

In Fig. 6-2: B is the strap passing through the small hole.

In Fig. 7: 1-6 grooves; 2 gas source connector; C the universal connector of respiratory anesthesia equipment; D respiratory anesthesia equipment.

Among Fig. 8: 1-6 groove; 2 gas source joints; A conversion joint; the interface of A-1 oxygen inhalation device;

detailed description

The specific implementation manner of the present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments.

Example

Please refer to Figure 1, Figure 2, Figure 3, Figure 4, Figure 5, Figure 6, Figure 6-1, Figure 6-2, Figure 7 and Figure 8, an oropharyngeal airway with an air source connector, its structure It is an integral structure composed of a flat strip-shaped air channel 1 with a flange 1-1 and an air source joint 2 located on the top of the flange 1-1, as shown in Figure 1, wherein:

The air passage 1, as shown in Fig. 1, Fig. 2 and Fig. 4, consists of a straight pipe section 1-3, a curved pipe section 1-4 and a flange 1-1 at the top of the straight pipe section 1-3. The structure of the channel 1 is composed of the inner cavity of the ventilation cavity 1-5 and the grooves 1-6 provided on both sides of the ventilation cavity 1-5;

The flange 1-1 is placed on the top of the straight pipe section 1-3, and both sides of the flange 1-1 are respectively provided with symmetrical small holes 1-2; as shown in Figure 2 and Figure 4;

The gas source joint 2 is composed of an upper 15mm conical joint 2-1 and a lower intubation tube 2-2, as shown in Figures 1 and 5, the lower intubation tube 2-2 is plugged and connected to the airway 1. In the straight pipe section 1-3, it can be clamped and connected firmly, as shown in Figure 1.

The grooves 1-6 on both sides of the air passage 1-5 of the air passage 1 lead directly to the two small holes 1-2 on the flange 1-1, and the side walls of the groove 1-6 are inclined to the center Bending to form a structure with an opening width smaller than the width of the bottom, wherein the opening width is 1 mm to 5 mm, which is designed to be 3 mm in this embodiment, and the bottom width is 5 mm to 10 mm, which is 6 mm in this embodiment. Tubular medical consumables can pass through grooves 1-6.

The curved pipe 1-4 has a radian of π/2 to 3π/4, which is designed to be π/2 in this embodiment.

The bottom end of the curved pipe section 1-4 is designed as an arc-shaped port 1-7, and its arc-shaped lines extend smoothly to both sides of the curved pipe section 1-4.

The airway 1 is made of medical polypropylene, or polyethylene, or one of polycarbonate materials, and this embodiment is designed as medical polypropylene material.

The air source connector 2 is made of medical polypropylene, or polyethylene, or one of polycarbonate materials, and this embodiment is designed to be medical polypropylene.

In the present invention, the 15mm conical joint is a common 15mm joint in the respiratory system, and its standard is the industry standard YY/T 1040.1-2015.

practical application

The invention is a semi-rigid flat strip type artificial airway made of plastic.

The actual application process of the present invention: send the flat strip-shaped airway 1 into the patient's oral cavity from the patient's molars, and the air source connector 2 is placed outside the oral cavity, as shown in Figure 6. The effect state after the present invention is inserted into the patient's oropharynx is shown in Figure 6-1. The medical strap B passing through the symmetrical small holes 1-2 on the flange 1-1 is fixed on the patient's head as shown in Figure 6-2, so as to prevent the oropharyngeal airway with the air source connector from slipping off or for the purpose of being swallowed by a patient.

Insert the sputum suction tube used for nursing or inspection and the medical thin tube of fiberoptic bronchoscope into the throat of the patient along the grooves 1-6 on both sides, and they can be fixed well and will not slide out at will. The air source connector 2 can be connected with Connect the general connector C of the respiratory device D to the respiratory anesthesia device, as shown in Figure 7.

When the patient needs first aid, during the first aid process, in order to allow the patient to inhale oxygen and the nursing staff to monitor as shown in Figure 8, the gas source joint 2 is connected to the conversion joint A with the monitoring catheter A2, and the conversion joint A can Connect the interface A-1 of the oxygen inhalation device, and the monitoring catheter A2 is connected to the oxygen inhalation device or the CO ₂ concentration monitoring device, so as to realize oxygen inhalation or monitor the CO ₂ concentration, as shown in FIG. 8 .

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the structure of the present invention in any form. All simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention still fall within the scope of the technical solutions of the present invention.

Claims (6)

1. a kind of oropharyngeal airway with gas source connector, it is a kind of airway with the edge of a wing, it is characterised in that：Its structure is by winged The structure that the flat bar airway (1) of edge (1-1) and the gas source connector (2) at the top of the edge of a wing (1-1) are integrally constituted, its In：

The airway (1), by straight pipeline section (1-3) and crooked pipeline section (1-4) and the wing at the top of straight pipeline section (1-3) Edge (1-1) is formed, and the construction of airway (1) is provided with recessed by its inner chamber for ventilation cavity (1-5) and ventilation cavity (1-5) both sides Groove (1-6) is formed；

The edge of a wing (1-1), it is placed at the top of straight pipeline section (1-3), and both sides are respectively provided with symmetrical small on the edge of a wing (1-1) Hole (1-2)；

The gas source connector (2), it is made up of top 15mm cone joints (2-1) and bottom intubation (2-2), its underpart intubation (2- 2) grafting and it is connected and fixed in the straight pipeline section (1-3) of airway (1).

2. the oropharyngeal airway with gas source connector according to claim 1, it is characterised in that：The ventilation of the airway (1) The groove (1-6) of cavity (1-5) both sides, it is to be respectively provided with symmetrical aperture (1-2) place through to both sides on the edge of a wing (1-1), it is recessed Groove (1-6) side wall forms the construction that A/F is less than bottom width to centroclinal bending, wherein A/F be 1mm~ 5mm, bottom width are 5mm~10mm.

3. the oropharyngeal airway with gas source connector according to claim 1, it is characterised in that：The crooked pipeline section (1-4), Its radian is pi/2 rad~3 π/4rad.

4. the oropharyngeal airway with gas source connector according to claim 1, it is characterised in that：The crooked pipeline section (1-4), Structure type at its tail end is designed as arc port (1-7), and its circular arc lines smoothly extends to the crooked pipeline section (1- 4) both sides.

5. the oropharyngeal airway with gas source connector according to claim 1, it is characterised in that：The airway (1), its material For polypropylene for medical article, or polyethylene, or makrolon, or silastic material one of which.

6. the oropharyngeal airway with gas source connector according to claim 1, it is characterised in that：The gas source connector (2), its material Matter is polypropylene for medical article, or polyethylene, or makrolon, or silastic material one of which.