CN207323810U - Endotracheal tubes and ventilators - Google Patents

Abstract

The utility model provides an endotracheal tube and breathing machine relates to medical instrument technical field, this endotracheal tube includes the gasbag unit, the pipe body and the syringe that outwards extends along pipe body pipe wall, the one end of pipe body is the inserted hole, the other end is the connector, pipe body inner tube wall circumference evenly is provided with a plurality of anesthetic tubes that communicate with the syringe, the port and the inserted hole department parallel and level of anesthetic tube, the mouth of pipe department of syringe is equipped with the mouth of pipe valve, the gasbag unit includes the inflation valve, along the outside gas tube that extends of pipe body pipe wall and the gasbag body that forms along pipe body outer pipe wall circumference, and the gasbag body, gas tube and inflation valve communicate with each other in proper order. The breathing machine comprises the tracheal catheter. The utility model discloses the technical problem that has to put into endotracheal tube and put into the larynx anesthesia pipe and carry out anesthesia to the patient and can not go on simultaneously among the prior art trachea cannula art in-process has been alleviated.

Description

Endotracheal tubes and ventilators

technical field

The utility model relates to the technical field of medical equipment, in particular to a trachea tube and a ventilator.

Background technique

Endotracheal intubation refers to the technique of inserting a tracheal tube into the trachea through the oral cavity or nasal cavity and through the glottis. This technique can relieve airway obstruction, ensure airway patency, remove respiratory secretions, prevent aspiration, and assist or control breathing. It is also the main method to maintain effective ventilation for general anesthesia patients and critically ill patients.

At present, before performing tracheal intubation, the surgeon needs to use a laryngeal anesthesia tube to spray local anesthetics on the patient's larynx and glottis, then remove the laryngeal anesthesia tube and insert the endotracheal tube to an appropriate depth in the trachea. Although laryngeal anesthesia can be used to a certain extent, the patient's throat and upper trachea can be locally anesthetized to reduce the cardiovascular stress response caused by the insertion of the endotracheal tube. However, this operation not only increases the preparation time before the operation, but also increases the deoxygenation and apnea time of patients by inserting and removing the laryngeal anesthetic tube, especially in obese and pediatric patients, it may also increase the risk of hypoxemia during tracheal intubation. probability of occurrence. Therefore, in the tracheal intubation process, there is a technical problem that the insertion of the endotracheal tube and the insertion of the laryngeal anesthesia tube to anesthetize the patient cannot be carried out simultaneously.

Utility model content

The purpose of the utility model is to provide a tracheal tube and a ventilator, so as to alleviate the technical problem that the insertion of the tracheal tube and the insertion of the laryngeal anesthesia tube to anesthetize the patient cannot be carried out simultaneously in the process of tracheal intubation in the prior art .

A tracheal catheter provided by the utility model comprises a balloon unit, a catheter body and an injection tube extending outward along the tube wall of the catheter body, one end of the catheter body is an insertion port, and the other end is a connection port, and the The connection between the catheter body and the injection tube is located close to the connection port;

A plurality of anesthesia tubes communicating with the injection tube are evenly arranged on the inner tube wall of the catheter body, the port of the anesthesia tube is flush with the insertion port, and a tube is arranged at the mouth of the injection tube. mouth valve;

The airbag unit includes an inflation valve, an inflation tube extending outward along the tube wall of the catheter body, and an airbag body formed along the circumference of the outer tube wall of the catheter body, and the airbag body is located near the insertion port The connection between the catheter body and the inflation tube is located close to the connection port, and the airbag body, the inflation tube and the inflation valve communicate with each other in sequence.

Further, the inner cavity of the airbag body is provided with a diaphragm passing through but not blocking the catheter body, and the diaphragm isolates the airbag body into a first airbag and a second airbag;

The inflation valve includes a first inflation valve and a second inflation valve, the inflation tube includes a first inflation tube and a second inflation tube respectively extending outward along the pipe wall of the catheter body, and the first inflation valve and A first indicator capsule is communicated between the first inflation tubes, and a second indicator capsule is communicated between the second inflation valve and the second inflation tube.

Further, an anti-blocking hole is provided on the wall of the catheter body, and the anti-blocking hole is located near the insertion port.

Further, scale lines are provided on the length direction of the catheter body.

Further, both the first inflation valve and the second inflation valve are cut-off valves.

Further, it also includes a support for supporting the inward depression of the catheter body.

Further, the supporting member is a spring.

Further, the catheter body, the balloon and the diaphragm are all made of polyvinyl chloride.

The beneficial effects of the utility model are:

The endotracheal catheter includes a balloon unit, a catheter body, and an injection tube extending outward along the tube wall of the catheter body, wherein a plurality of anesthesia tubes connected with the injection tube are arranged on the inner side of the tube wall of the catheter body, and the two ends of the catheter body are respectively It has an insertion port and a connection port. When in use, after aligning the insertion port of the catheter body with the glottis, gently rotate the catheter body to slowly enter the trachea. When the catheter body is placed in the patient's trachea, since the port of the anesthesia tube is flush with the insertion port, the surgeon can spray the anesthetic drug in the syringe to the patient's larynx through the port of the anesthesia tube and glottis for local anesthesia, and connect a ventilator to the port of the catheter body to ensure that oxygen can be delivered to the patient.

The tracheal catheter of the utility model is provided with a plurality of anesthesia tubes connected with the injection tube in the inner circumferential direction of the tube wall of the catheter body. During the process of inserting the tracheal catheter into the patient's trachea, the patient's throat and trachea are completely controlled. Local anesthesia can effectively alleviate the mechanical stimulation of the tracheal mucosa during the insertion of the endotracheal tube, thereby reducing the cardiovascular stress response of the patient. At the same time, it also avoids the preparation and operation of additional equipment for local anesthesia of the throat and trachea mucosa after the laryngoscope exposes the patient's glottis, which effectively shortens the deoxygenation and asphyxia time of the patient during anesthesia induction, and can achieve During tracheal intubation, real-time and fixed-point local anesthesia is performed on the patient's throat and airway mucosa.

Wherein, the airbag unit includes an inflation valve, an inflation tube extending outward along the pipe wall of the catheter body, and an airbag body formed along the circumference of the catheter body wall. The surgeon connects the syringe to the inflation valve and injects air into the airbag through the inflation pipe to inflate The air bag at the end is tightly attached to the airway wall to prevent the catheter body from falling off. The inflated airbag body can also prevent the gas entering the trachea of the ventilator from leaking from the gap between the catheter body and the patient's trachea, and at the same time ensure the tidal volume supply of the ventilator.

The utility model also provides a ventilator comprising the above-mentioned tracheal tube.

The beneficial effects of the utility model are:

The ventilator has the same advantages as the above-mentioned endotracheal tube, which will not be repeated here.

Description of drawings

In order to more clearly illustrate the specific implementation of the utility model or the technical solutions in the prior art, the accompanying drawings that need to be used in the description of the specific implementation or the prior art will be briefly introduced below. Obviously, the following descriptions The accompanying drawings are some implementations of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without any creative work.

Fig. 1 is a schematic structural view of an endotracheal tube provided by Embodiment 1 of the present invention;

Fig. 2 is the enlarged view of place A in Fig. 1;

Fig. 3 is the enlarged view of place B in Fig. 1;

Fig. 4 is a schematic structural view of the balloon body and the insertion port of the endotracheal tube in Fig. 1 .

Icons: 1-airbag unit; 2-catheter body; 3-injection tube; 4-anesthesia tube; 5-catheter connector; 6-anti-blocking hole; 7-spring; 8-first indicator bag; 9-second indicator bag ; 11-inflatable valve; 12-inflatable pipe; 13-air bag body; 132-the second air bag; 21-the insertion port; 22-the connection port.

Detailed ways

The technical solutions of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are part of the embodiments of the utility model, but not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, use a specific The azimuth structure and operation, therefore can not be construed as the limitation of the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a flexible connection. Detachable connection, or integral connection; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model in specific situations.

Embodiment one

As shown in Fig. 1, Fig. 3 and Fig. 4, the present embodiment provides a kind of endotracheal catheter, comprising a balloon unit 1, a catheter body 2 and an injection tube 3 extending outward along the tube wall of the catheter body 2, one end of the catheter body 2 is The insertion port 21 has a connection port 22 at the other end, and the connection between the catheter body 2 and the injection tube 3 is located near the connection port 22 .

The inner tube wall of the catheter body 2 is evenly provided with a plurality of anesthesia tubes 4 communicating with the injection tube 3 in the circumferential direction.

The airbag unit 1 comprises an inflation valve 11, an inflation tube 12 extending outward along the pipe wall of the catheter body 2, and an airbag body 13 formed along the circumference of the outer pipe wall of the catheter body 2, the airbag body 13 is located near the insertion port 21, The connection between the catheter body 2 and the inflation tube 12 is located close to the connection port 22, and the airbag body 13, the inflation tube 12 and the inflation valve 11 communicate with each other in sequence.

The endotracheal catheter includes a balloon unit 1, a catheter body 2 and an injection tube 3 extending outward along the tube wall of the catheter body 2, wherein a plurality of anesthesia tubes 4 communicated with the injection tube 3 are provided on the inner side of the tube wall of the catheter body 2 in the circumferential direction , The two ends of the catheter body 2 are respectively provided with an insertion port 21 and a connection port 22 . When in use, open the laryngoscope, the surgeon’s right thumb and index finger move the upper and lower teeth and lips of the patient, hold the handle of the laryngoscope tightly with the left hand, and slowly push the lens forward along the midline of the patient’s mouth to expose the patient’s mouth and uvula. , pharynx and epiglottis, provoke the epiglottis, and expose the glottis. The surgeon holds the catheter body 2 in his right hand and enters from the right side of the patient’s mouth. After aligning the insertion port 21 of the catheter body 2 with the glottis, gently rotate the catheter body 2 to slowly enter Into the trachea until the balloon body 13 enters the glottis completely. When the catheter body 2 is placed into the patient's trachea, since the port of the anesthesia tube 4 is flush with the insertion port 21, the operator can spray the anesthetic drug in the syringe through the port of the anesthesia tube 4 through the nozzle of the injection tube 3 Go to the patient's larynx and glottis for local anesthesia, and connect the ventilator to the connection port 22 of the catheter body 2 to ensure that oxygen can be delivered to the patient.

The tracheal tube in this embodiment is provided with a plurality of anesthesia tubes 4 connected with the injection tube 3 in the inner circumferential direction of the tube wall of the tube body 2, and the patient's throat is completely treated during the process of inserting the tracheal tube into the patient's trachea. Local anesthesia of the trachea and trachea can effectively alleviate the mechanical stimulation of the tracheal mucosa during the insertion of the tracheal tube, thereby reducing the cardiovascular stress response of the patient. At the same time, it also avoids the preparation and operation of additional equipment for local anesthesia of the throat and trachea mucosa after the laryngoscope exposes the patient's glottis, which effectively shortens the deoxygenation and asphyxia time of the patient during anesthesia induction, and can achieve During tracheal intubation, real-time and fixed-point local anesthesia is performed on the patient's throat and airway mucosa.

Wherein, the airbag unit 1 includes an inflation valve 11, an inflation tube 12 extending outward along the tube wall of the catheter body 2, and an airbag body 13 formed along the circumference of the tube wall of the catheter body 2, and the surgeon connects the syringe with the inflation valve 11 through the inflation tube 12 Inject air into the air bag, and the inflated air bag is tightly attached to the airway wall to prevent the catheter body 2 from falling off. The inflated airbag body 13 can also prevent the gas entering the trachea of the ventilator from leaking from the gap between the catheter body 2 and the patient's trachea, and at the same time ensure the tidal volume supply of the ventilator.

In this embodiment, the number of anesthesia tubes 4 is preferably four, and the four anesthesia tubes 4 are uniformly arranged on the inner tube wall of the catheter body 2 and the ports of the anesthesia tubes 4 are all flush with the insertion port 21 , the four anesthesia tubes 4 can achieve local anesthesia on the patient's throat and airway mucosa, and also reduce the processing cost.

In this embodiment, when the endotracheal tube is used for tracheal intubation, the endotracheal tube can be entered not only through the patient's oral cavity but also through the patient's nasal cavity.

In this embodiment, the end of the insertion port 21 of the catheter body 2 is slightly bent inward, and the bent end of the insertion port 21 can prevent damage to the patient's turbinate, glottis or trachea during tracheal intubation.

As shown in FIG. 2 and FIG. 4 , in this embodiment, the plane of the insertion port 21 is inclined relative to the axis of the catheter body 2 . The inclined insertion port 21 facilitates the catheter body 2 to be pushed deeply into the trachea without easily causing damage to the inner wall of the trachea and mucous membrane.

As shown in FIGS. 2 and 4 , the cavity of the airbag body 13 is provided with a diaphragm passing through but not blocking the catheter body 2 , and the diaphragm isolates the airbag body 13 into a first airbag 131 and a second airbag 132 .

The inflation valve 11 comprises a first inflation valve 111 and a second inflation valve 112, and the inflation tube 12 comprises a first inflation tube 121 and a second inflation tube 122 respectively extending outward along the pipe wall of the catheter body 2, and the first inflation valve 111 and the second inflation valve 112 The first indicator bag 8 communicates between the first inflation tubes 121 , and the second indicator bag 9 communicates between the second inflation valve 112 and the second inflation tube 122 .

The first inflation valve 111 , the first inflation tube 121 and the first air bag 131 communicate with each other in sequence, and the second inflation valve 112 , the second inflation tube 122 and the second air bag 132 communicate with each other in sequence.

In this embodiment, the inner cavity of the airbag body 13 is provided with a diaphragm that passes through but does not block the catheter body 2, and the diaphragm separates the airbag body 13 into a first airbag 131 and a second airbag 132, wherein the first inflation valve 111, the second airbag 132 An inflatable tube 121 and the first air bag 131 communicate with each other in turn, and the second inflatable valve 112, the second inflatable tube 122 and the second air bag 132 communicate with each other in turn, and the surgeon connects the syringe to the first inflatable valve 111 or the second inflatable valve 112 Inject air into the first airbag 131 or the second airbag 132 through the first inflation tube 121 or the second inflation tube 122 respectively, and the injector can inflate the first airbag 131 and the second airbag 132 alternately, so as to ensure airway sealing At the same time, the force point of the airbag body 13 on the tracheal mucosa is constantly changed, which relieves the fixed-point compression of the airbag body 13 on the fixed position of the patient's tracheal mucosa during the long-term operation process, causing serious pressure damage, and even causing tracheal Mucosa ischemic necrosis and perforation occurred.

Wherein, the first indicating bag 8 can expand or shrink synchronously with the first air bag 131, and the second indicating bag 9 can expand or shrink synchronously with the second air bag 132. The gas volume of the first balloon 131 or the second balloon 132 in the patient's body further improves the practicability and functionality of the endotracheal tube. At the same time, the first inflation valve 111 and the second inflation valve 112 can be connected with a pressure tester to accurately measure the inflation pressure in the first airbag 131 and the second airbag 132 .

In this embodiment, the shape of the diaphragm when it is not stressed is wrinkled. The pleated diaphragm is conducive to contraction, so the diaphragm in a relaxed state occupies a small space, and at the same time, when the endotracheal tube is in a packaged storage state, it avoids damage caused by being squeezed.

Wherein, in this embodiment, the diaphragm can also be set as a straight or folded film.

As shown in FIG. 1 , in this embodiment, a conduit connector 5 is provided at the position of the connection port 22 . The connection port 22 of the catheter body 2 is used for connecting with a ventilator. In order to further improve the practicability of the endotracheal tube, the tube connector 5 is detachably fixedly connected to the connection port 22 . The detachable and fixedly connected catheter connector 5 can facilitate the replacement of damaged catheter connector 5, preventing the catheter connector 5 from being repeatedly removed and connected to the ventilator, resulting in local damage at the catheter connector 5 and resulting in failure of the entire tracheal tube.

As shown in FIG. 1 , FIG. 3 and FIG. 4 , in this embodiment, an anti-blocking hole 6 is provided on the pipe wall of the catheter body 2 , and the anti-blocking hole 6 is located near the insertion port 21 . During tracheal intubation, the secretions in the patient's body will block the insertion port 21 of the endotracheal tube. When the insertion port 21 is blocked, the anti-blocking through hole can be used as a backup channel for the catheter body 2, so that the breathing equipment outside the patient's body can Oxygen is normally provided in the patient's body to ensure the normal use of the tracheal tube, further improving the practicability and functionality of the tracheal tube.

In this embodiment, scale lines are provided along the length direction of the catheter body 2 . The scale line on the catheter body 2 can facilitate the operator to observe and understand the depth of the endotracheal catheter entering the patient's body, so that the tracheal intubation can be performed more accurately and safely.

Specifically, the first inflation valve 111 and the second inflation valve 112 in this embodiment are cut-off valves. The first inflation valve 111 and the second inflation valve 112 are used to block the air inside the first airbag 131 and the second airbag 132 respectively, and the first inflation valve 111 and the second inflation valve 112 can respectively control the first airbag 131 and the second airbag 132 respectively. Inflate and deflate the second airbag 132, and then change the size of the first airbag 131 and the second airbag 132 to alleviate the fixed-point compression of the airbag body 13 on the fixed position of the patient's tracheal mucosa during the long-term operation process, causing serious pressure cases of sexual injury.

As shown in FIG. 2 , wherein, in this embodiment, the inside of the catheter body 2 is also provided with a support for supporting the inner tube wall of the catheter body 2 . The support member can ensure the complete shape and structure of the catheter body 2 and smooth air flow, preventing the side wall of the trachea or the pressure of the surgeon's fingers on the catheter body 2 during the operation, causing the tube wall to be concave and affecting the operation.

Specifically, the supporting member in this embodiment is a spring 7 . The spring 7 is snugly disposed on the inner tube wall of the catheter body 2 , and the axis of the spring 7 coincides with the axis of the catheter body 2 . The spring 7 is coaxially and snugly arranged on the inner tube wall of the catheter body 2, so that the inward pressure of the tube wall of the catheter body 2 can be evenly distributed to the spring 7, and the design is ingenious and the effect is obvious. Wherein, in order to reduce or even prevent the spring 7 from obstructing the airflow in the conduit body 2, the spring 7 is designed with a larger inner diameter.

Specifically, in this embodiment, the catheter body 2, the balloon and the diaphragm are all made of polyvinyl chloride. Polyvinyl chloride has stable physical and chemical properties, is insoluble in water, alcohol, gasoline and is non-toxic. It has low gas and water vapor leakage and good flame retardancy, so it has a long service life. And polyvinyl chloride has a wide range of sources, low price, and low production cost.

Embodiment two

This embodiment also provides a ventilator, which includes the endotracheal tube described in the first embodiment above.

The ventilator has the same advantages as the above-mentioned endotracheal tube, which will not be repeated here.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present utility model, and are not intended to limit it; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand : It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements to some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions depart from the various embodiments of the present invention Scope of technical solutions.

Claims (10)

1. A tracheal tube, characterized in that it comprises a balloon unit (1), a catheter body (2) and an injection tube (3) extending outward along the tube wall of the catheter body (2), and the catheter body (2) ) is an insertion port (21) at one end, and a connection port (22) at the other end, and the connection between the catheter body (2) and the injection tube (3) is located near the connection port (22); A plurality of anesthesia tubes (4) communicated with the injection tube (3) are evenly arranged on the inner tube wall of the catheter body (2), and the port of the anesthesia tube (4) is connected to the insertion port (21) place is flush, and the mouth of the injection pipe (3) is provided with a mouth valve; The airbag unit (1) includes an inflation valve (11), an inflation tube (12) extending outward along the tube wall of the catheter body (2) and an airbag formed along the circumference of the outer tube wall of the catheter body (2) Body (13), the air bag body (13) is located near the insertion port (21), the connection between the catheter body (2) and the inflation tube (12) is located near the connection port (22) ) position, and the airbag body (13), the inflation tube (12) and the inflation valve (11) communicate with each other in sequence. 2. The endotracheal tube according to claim 1, characterized in that, the inner cavity of the balloon body (13) is provided with a diaphragm that passes through but does not block the catheter body (2), and the diaphragm connects the balloon body (13) isolated as the first air bag (131) and the second air bag (132); the inflation valve (11) comprises the first inflation valve (111) and the second inflation valve (112), and the inflation tube (12) It includes a first inflation tube (121) and a second inflation tube (122) respectively extending outward along the tube wall of the catheter body (2), and the first inflation valve (111) and the first inflation tube ( 121) is communicated with a first indicating capsule (8), and between the second inflation valve (112) and the second inflation tube (122) is communicated with a second indicating capsule (9). 3. The endotracheal tube according to claim 2, characterized in that a tube connector (5) is provided at the position of the connection port (22). 4. The endotracheal tube according to claim 3, characterized in that an anti-blocking hole (6) is provided on the tube wall of the catheter body (2), and the anti-blocking hole (6) is located near the insertion port ( 21) at the position. 5. The endotracheal tube according to claim 4, characterized in that, scale lines are provided on the length direction of the tube body (2). 6. The endotracheal tube according to any one of claims 2-5, characterized in that, both the first inflation valve (111) and the second inflation valve (112) are shut-off valves. 7. The endotracheal tube according to claim 6, further comprising a support for supporting the inner tube wall of the tube body (2). 8. The endotracheal tube according to claim 7, characterized in that the support member is a spring (7). 9. The endotracheal tube according to claim 8, characterized in that, the tube body (2), the balloon and the diaphragm are all made of polyvinyl chloride. 10. A ventilator, characterized in that it comprises the endotracheal tube according to any one of claims 1-9.