CN216602964U

CN216602964U - Stomach tube for preventing backflow and aspiration

Info

Publication number: CN216602964U
Application number: CN202122642656.1U
Authority: CN
Inventors: 李雅倩; 马晓旭
Original assignee: Zhejiang University ZJU
Current assignee: Zhejiang University ZJU
Priority date: 2021-10-29
Filing date: 2021-10-29
Publication date: 2022-05-27
Anticipated expiration: 2031-10-29

Abstract

A stomach tube for preventing backflow and aspiration comprises a stomach tube body, a first inflatable cuff and a second inflatable cuff, wherein the first inflatable cuff and the second inflatable cuff are fixedly sleeved at the middle front end of the stomach tube body, cavities are formed in the first inflatable cuff and the second inflatable cuff, and the first inflatable cuff and the second inflatable cuff can expand to be in an elliptical ball shape after being inflated so as to seal an esophagus of a patient and prevent gastric contents from flowing out and being aspirated into a lung by mistake; the rear end of the first inflatable cuff is connected with a first inflation hose, the first inflation hose clings to the outer side tube wall of the gastric tube body and extends backwards to the rear end of the gastric tube body, and the first inflation hose is separated from the gastric tube body at the rear end of the gastric tube body and continues to extend backwards to be connected with a first inflation balloon; the rear end of the first inflatable balloon is provided with an inflatable interface, and the inflatable interface comprises a spring piston accommodating cavity and an injector interface. The second inflatable cuff is connected to a second inflatable balloon by a second inflation hose. The utility model seals the esophagus by the inflatable cuff, prevents the stomach from flowing out and being sucked into the lung after anesthesia, thereby reducing the occurrence rate of backflow and aspiration and improving the safety of patients.

Description

Stomach tube for preventing backflow and aspiration

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a stomach tube for preventing backflow and aspiration.

Background

Reflux aspiration is one of the most fatal risk events in the induction phase of anesthesia, and particularly has a high incidence rate in patients with full stomach, such as acute ileus and the like, the mechanism is that gastric contents flow out and enter the lung, and mild patients can cause pneumonia and atelectasis of the patients; severe cases can lead to respiratory failure, increased ICU residence time, difficult treatment, and extremely high mortality. It is a difficult challenge for both the patient and the anesthesiologist. Including inducing soon and keeping somewhere thick stomach tube attraction in the measure of preventing at present the refluence mistake and inhaling, nevertheless difficult discovery in clinical work, the stomach tube that uses commonly at present has certain limitation, often is difficult to carry out abundant attraction to patient's stomach content because of reasons such as stomach tube adherence, improper position or content granule are great, leads to the refluence mistake to inhale the incident occasionally and takes place, threatens patient life safety.

Disclosure of Invention

In order to overcome the problems, the utility model provides a stomach tube for preventing backflow and aspiration.

The technical scheme adopted by the utility model is as follows: a stomach tube for preventing backflow and aspiration comprises a stomach tube body, a first inflatable cuff and a second inflatable cuff, wherein the first inflatable cuff and the second inflatable cuff are fixedly sleeved at the middle front end of the stomach tube body, and the second inflatable cuff is positioned behind the first inflatable cuff; the first inflatable cuff and the second inflatable cuff are internally provided with cavities, and can expand into an elliptical ball shape after being inflated so as to seal the esophagus of a patient and prevent the contents of the stomach from flowing out and being inhaled into the lungs by mistake; taking one end of the stomach tube body inserted into the stomach of the patient as the front end, and taking one end of the stomach tube body left outside the patient as the rear end;

the rear end of the first inflatable cuff is connected with a first inflation hose, the first inflation hose is tightly attached to the outer side tube wall of the gastric tube body and extends backwards to the rear end of the gastric tube body, and the rear end of the gastric tube body is separated from the gastric tube body and continues to extend backwards to be connected with a first inflation balloon; the rear end of the first inflatable balloon is provided with an inflatable interface, the inflatable interface comprises a spring piston accommodating cavity and an injector interface, and a spring piston is arranged in the spring piston accommodating cavity; the spring piston comprises a piston head, the front surface of the piston head is aligned with the injector interface, and the back surface of the piston is connected with a spring;

the second inflatable cuff is arranged on the outer side of the first inflatable hose and the stomach tube body, the rear end of the second inflatable cuff is connected with a second inflatable hose, and the second inflatable hose and the first inflatable hose are symmetrically arranged on the stomach tube body; the second inflation hose clings to the outer side tube wall of the stomach tube body and extends backwards to the rear end of the stomach tube body, the rear end of the stomach tube body is separated from the stomach tube body and continues to extend backwards to be connected with the second inflation balloon, and the second inflation balloon is the same as the first inflation balloon in structure.

Preferably, the first inflation hose and the second inflation hose are integrally formed with the gastric tube body.

Preferably, the first inflatable cuff is disposed 20cm from the head end of the gastric tube body and the second inflatable cuff is disposed 25cm from the head end of the gastric tube body.

The utility model has the beneficial effects that: the esophagus is sealed by the first inflatable cuff and the second inflatable cuff, so that the phenomenon that the stomach is sucked into the lung after being anesthetized is prevented, the occurrence rate of backflow aspiration is reduced, and the safety of a patient is improved. The first inflatable cuff and the second inflatable cuff are both used for ensuring the safety and the reliability in application.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a partial enlarged view at a in fig. 1 (the spring is in a compressed state).

Description of reference numerals: 1. a gastric tube body; 2. a first inflatable cuff; 3. a first inflation hose; 4. a first inflatable balloon; 5. a spring piston; 6. a die; 7. a second inflatable cuff; 8. a second inflation hose; 9. a second inflatable balloon.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments, but not all embodiments, of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the orientations or positional relationships indicated as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., appear based on the orientations or positional relationships shown in the drawings only for the convenience of describing the present invention and simplifying the description, but not for indicating or implying that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to the attached drawings, the stomach tube for preventing backflow and aspiration comprises a stomach tube body 1 and a first inflatable cuff 2 and a second inflatable cuff 7 which are fixedly sleeved at the front end of the stomach tube body 1; the stomach tube body 1 is made of silica gel, the length is 110cm, and the outer diameter is 5 mm; the first inflatable bag sleeve 2 is arranged 20cm away from the head end of the stomach tube body 1; the second inflatable cuff 7 is located 25cm from the head end of the gastric tube body 1. The first inflatable cuff 2 and the second inflatable cuff 7 are provided with cavities inside, and the first inflatable cuff 2 and the second inflatable cuff 7 can expand into an elliptical ball shape after being inflated so as to seal the esophagus of a patient and prevent the gastric contents from flowing out and being inhaled into the lungs by mistake; the thicknesses of the first inflatable bag sleeve 2 and the second inflatable cuff 7 before inflation are both 5.2mm, and the minor axis of the oval sphere formed by the first inflatable bag sleeve 2 and the second inflatable cuff 7 is 3.5 cm;

taking one end of the stomach tube body 1 inserted into the stomach of a patient as a front end, and taking one end of the stomach tube body 1 remaining outside the patient as a rear end;

the rear end of the first inflatable cuff 2 is connected with a first inflating hose 3, the first inflating hose 3 clings to the outer side tube wall of the gastric tube body 1 and extends backwards to the rear end of the gastric tube body 1, the rear end of the gastric tube body 1 is separated from the gastric tube body 1 and continues to extend backwards to be connected with a first inflating sacculus 4, and the first inflating hose 3 and the gastric tube body 1 are of an integrated structure. The rear end of the first inflatable balloon 4 is provided with an inflatable interface, the inflatable interface comprises a spring piston accommodating cavity and an injector interface, and a spring piston 5 is arranged in the spring piston accommodating cavity; the spring piston 5 comprises a piston head, the front of which is aligned with the syringe interface and the back of which is connected to a spring.

The second inflatable cuff 7 is arranged on the outer side of the first inflatable hose 3 and the stomach tube body 1, the rear end of the second inflatable cuff 7 is connected with a second inflatable hose 8, and the second inflatable hose 8 and the first inflatable hose 3 are symmetrically arranged on the stomach tube body 1; the second inflation hose 8 clings to the outer side tube wall of the gastric tube body 1 and extends backwards to the rear end of the gastric tube body 1, and is separated from the gastric tube body 1 at the rear end of the gastric tube body 1 and continues to extend backwards to be connected with a second inflation balloon 9, the second inflation balloon 9 and the first inflation balloon 4 are the same in structure, and the second inflation hose 8 and the gastric tube body 1 are also of an integrally formed structure; the tube core 6 is arranged in the stomach tube body 1.

When in use, the stomach tube is kept in the patient with full stomach, and the stomach content is firstly sucked before anesthesia induction; the injector pushes the spring piston 5 to inject gas through the injector interfaces on the first inflatable balloon 4 and the second inflatable balloon 9 respectively, the gas enters the inflatable cuff 2 through the inflatable hose 3, the inflatable cuff 2 expands to close the esophagus after being inflated, and the gastric contents are prevented from flowing out of the esophagus under the condition of insufficient drainage.

After the anesthesia induction is finished, the injector pushes the spring piston 5 to pump out gas through the injector interfaces on the first inflatable balloon 4 and the second inflatable balloon 9 respectively, the inflatable cuff 2 is deflated, the use of subsequent nasal feeding nutrition is not influenced, the safety of a patient is improved, and meanwhile, no extra burden is added.

The embodiments described in this specification are merely illustrative of implementations of the inventive concept and the scope of the utility model should not be considered limited to the specific forms set forth in the embodiments but rather by the equivalents thereof as may occur to those skilled in the art upon consideration of the teachings herein.

Claims

1. The utility model provides a prevent stomach tube that refluence mistake was inhaled which characterized in that: comprises a gastric tube body (1) and a first inflatable cuff (2) and a second inflatable cuff (7) which are fixedly sleeved at the middle front end of the gastric tube body (1), wherein the second inflatable cuff (7) is positioned at the rear part of the first inflatable cuff (2); the first inflatable cuff (2) and the second inflatable cuff (7) are internally provided with cavities, and the first inflatable cuff (2) and the second inflatable cuff (7) can expand into an elliptical ball shape after being inflated so as to seal the esophagus of a patient and prevent the contents of the stomach from flowing out and being inhaled into the lung by mistake; one end of the stomach tube body (1) inserted into the stomach of the patient is taken as the front end, and the other end of the stomach tube body (1) left outside the patient is taken as the rear end;

the rear end of the first inflatable cuff (2) is connected with a first inflating hose (3), the first inflating hose (3) clings to the outer side tube wall of the stomach tube body (1) and extends backwards to the rear end of the stomach tube body (1), and the first inflating hose (3) is separated from the stomach tube body (1) at the rear end of the stomach tube body (1) and continues to extend backwards to be connected with a first inflating saccule (4); the rear end of the first inflatable balloon (4) is provided with an inflatable interface, the inflatable interface comprises a spring piston accommodating cavity and an injector interface, and a spring piston (5) is arranged in the spring piston accommodating cavity; the spring piston (5) comprises a piston head, the front surface of the piston head is aligned with the injector interface, and the back surface of the piston is connected with a spring;

the second inflatable cuff (7) is arranged on the outer side of the first inflatable hose (3) and the stomach tube body (1), the rear end of the second inflatable cuff (7) is connected with a second inflatable hose (8), and the second inflatable hose (8) and the first inflatable hose (3) are symmetrically arranged on the stomach tube body (1); the second is aerifyd hose (8) and is hugged closely the outside pipe wall of stomach tube body (1) and extends backward to stomach tube body (1) rear end to break away from stomach tube body (1) in stomach tube body (1) rear end and continue to extend backward and be connected with second and aerify sacculus (9), and sacculus (9) are aerifyd to the second and the first structure of aerifing sacculus (4) the same.

2. A gastric tube for preventing reflux aspiration as claimed in claim 1, wherein: the first inflation hose (3), the second inflation hose (8) and the stomach tube body (1) are integrally formed.

3. A gastric tube for preventing reflux aspiration as claimed in claim 1, wherein: the first inflatable cuff (2) is arranged 20cm away from the head end of the gastric tube body (1), and the second inflatable cuff (7) is arranged 25cm away from the head end of the gastric tube body (1).