Gastroscope pressure-reducing mistaken-aspiration-preventing cannula

Abstract

The utility model provides a gastroscope decompression and aspiration prevention cannula which comprises a cannula body, a silica gel valve, a first balloon, a second balloon, an air injection tube I, an air injection tube II and a suction tube, and a gastroscope channel is formed in the cannula body. The sleeve comprises a head end tube section, a body tube section and a tail tube section, the silica gel valve is arranged in a first channel of the head end tube section, one end of the suction tube is connected to the tube wall of the head end tube section and communicated with the first channel, and the other end of the suction tube is connected with an external negative pressure suction device; the gas injection tube I and the gas injection tube II are both connected to the tube wall of the body tube section, the first balloon wraps the tube wall of the tail tube section and is communicated with the gas injection tube I, and the second balloon wraps the tube wall in the middle of the body tube section and is communicated with the gas injection tube II. The ball air bag can seal the door, the cylindrical air bag can seal the gap between the esophagus and the endoscope, gas and liquid in the stomach are led out through the endoscope channel in a negative pressure mode, the pressure in the stomach is reduced, and vomiting and aspiration are effectively prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of medical instruments, in particular to a gastroscope decompression and mis-aspiration prevention sleeve. Background Art

[0002] Gastroscopy and duodenoscope are important tools for diagnosing and treating upper gastrointestinal diseases. In order to obtain a clear view under the microscope, gas or liquid needs to be continuously injected into the stomach or duodenum. During the examination and treatment, the contents of the duodenum can also flow back into the stomach, causing an increase in gastric cavity pressure, which in turn causes vomiting. Vomitus can contaminate the operating table, the operator's surgical gown and the operating room, and even cause keratitis in the patient and spread the disease. When the patient is under anesthesia of the throat mucosa or intravenous anesthesia, the pharyngeal reflex is significantly weakened, and the reflux cannot enter the trachea, leading to serious complications such as aspiration pneumonia and hypoxemia, and even endangering the patient's life.

[0003] In order to reduce the occurrence of aspiration during endoscopic operation, "ZL201721111208.6" discloses an anti-aspiration gastroscope overtube, which blocks the esophagus with an air balloon on the overtube to prevent aspiration. "ZLCN202120551887.9" discloses an anti-aspiration cannula used for painless gastroscopy treatment, which blocks the esophagus with two balloons to reduce the occurrence of reflux. In addition, a suction hole is provided between the two balloons, so that the liquid that refluxes between the two balloons can overflow to reduce the occurrence of aspiration. The above-mentioned utility model only serves the purpose of passively preventing aspiration and cannot actively prevent vomiting. When vomiting occurs, due to the blockage of the air balloon, the refluxed gastric contents can still overflow through the gap between the endoscope and the cannula, causing environmental pollution and increasing the incidence of nosocomial infection. Utility Model Content

[0004] In view of the above technical problems, a gastroscope decompression and aspiration prevention sleeve is provided. The technical means adopted by the utility model are as follows:

[0005] A gastroscope decompression and aspiration prevention sleeve, comprising: a sleeve, a silicone valve, a first balloon, a second balloon, an air injection tube I, an air injection tube II and a suction tube, wherein the sleeve has a gastroscope channel inside; the sleeve comprises a head end tube section, a body tube section and a tail tube section which are sequentially connected from head to tail, a first channel is opened in the head end tube section, a second channel is opened in the body tube section, a third channel is opened in the tail tube section, and the first channel, the second channel and the third channel are sequentially connected from head to tail to form the gastroscope channel;

[0006] The silicone valve is placed in the first channel of the head end pipe section, one end of the suction tube is connected to the pipe wall of the head end pipe section and communicates with the first channel, and the other end of the suction tube is used to be connected to an external negative pressure suction device;

[0007] The gas injection tube I and the gas injection tube II are both connected to the tube wall of the body tube segment, the first balloon is wrapped on the tube wall of the tail tube segment and connected to the gas injection tube I, the second balloon is wrapped on the tube wall in the middle of the body tube segment and connected to the gas injection tube II, and the gas injection tube II is close to the head end tube segment.

[0008] Furthermore, a channel I is opened inside the sleeve, and two ends of the channel I are respectively connected to the gas injection tube I and the first balloon.

[0009] Furthermore, a channel II is opened inside the sleeve, and two ends of the channel II are respectively connected to the gas injection tube II and the second balloon.

[0010] Furthermore, the first balloon is a spherical air balloon.

[0011] Furthermore, the second balloon is a cylindrical air balloon.

[0012] Compared with the prior art, the utility model has the following advantages:

[0013] 1. The utility model is placed into the stomach through the mouth, actively attracts gas and liquid in the stomach, reduces the pressure in the stomach, and prevents vomiting.

[0014] 2. In the utility model, the spherical airbag can block the door, and the cylindrical airbag can block the test tube, thus playing a double anti-backflow role.

[0015] 3. The utility model can seal the gap between the outer sleeve and the endoscope, and will not cause environmental pollution and nosocomial infection caused by the overflow of gastric contents.

[0016] Based on the above reasons, the utility model can be widely promoted in the fields of medical treatment and the like. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 It is a structural schematic diagram of the utility model.

[0019] Figure 2 It is a schematic diagram of the utility model in which the spherical airbag is filled and the cylindrical airbag is not filled.

[0020] Figure 3 It is a schematic diagram of the spherical airbag and the cylindrical airbag of the utility model being filled.

[0021] In the figure: 11, head end tube segment; 12, body tube segment; 13, tail tube segment; 2, suction tube; 3, gas injection tube I; 4, first balloon; 5, second balloon; 6, gas injection tube II. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] like Figure 1-3 As shown, the utility model provides a gastroscope decompression and anti-misaspiration sleeve, which relates to an endoscope sleeve.

[0024] The utility model discloses an endoscope decompression and mis-aspiration prevention sleeve tube comprising: a sleeve tube, a gastroscope channel, a silicone valve, a spherical air bag, a cylindrical air bag, an air injection tube I, an air injection tube II and a suction tube.

[0025] The interior of the sleeve is provided with a gastroscope channel; the sleeve includes a head end tube section, a body tube section and a tail tube section which are sequentially connected from head to tail, a first channel is opened in the head end tube section, a second channel is opened in the body tube section, and a third channel is opened in the tail tube section, and the first channel, the second channel and the third channel are sequentially connected from head to tail to form a gastroscope channel.

[0026] The silicone valve is located in the gastroscope channel of the cannula head end tube section; one end of the suction tube is connected to the tube wall of the head end tube section and connected to the gastroscope channel. The other end of the suction tube is used to be connected to an external negative pressure suction device (existing equipment).

[0027] The spherical airbag is wrapped on the tube wall of the tail tube section of the sleeve and is connected to the gas injection tube I through the channel I in the tube wall; the cylindrical airbag is wrapped on the tube wall in the middle of the sleeve body tube section and is connected to the gas injection tube II through the channel II in the tube wall, and the gas injection tube II is close to the head end tube section.

[0028] The spherical airbag of the utility model can close the inlet, and the cylindrical airbag can close the gap between the esophagus and the endoscope, and the gas and liquid in the stomach are negatively pressured out through the endoscope channel to reduce the pressure in the stomach and effectively prevent vomiting and aspiration.

[0029] Put the endoscopic decompression anti-aspiration cannula on the gastroscope or duodenum. After the endoscope enters the stomach, insert the cannula tip into the stomach under the guidance of the endoscope, inflate the spherical balloon, pull back the outer cannula to make the spherical balloon close to the stomach, and then inflate the cylindrical balloon to block the gap between the endoscope and the esophagus.

[0030] Connect the negative pressure suction device, which is intermittently connected during gastroscopy to control the pressure in the stomach and reduce vomiting. At the same time, it can suck out the fluid around the pylorus and reduce the occurrence of aspiration. During duodenoscope operation, extend the opening time of the negative pressure suction device to keep the stomach cavity empty, reduce the pressure in the stomach, and prevent vomiting and aspiration.

[0031] After the operation, the gas in the cylindrical and spherical balloons is emptied and removed together with the gastroscope.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A gastroscope decompression and aspiration prevention cannula, characterized in that: include: A sleeve, a silicone valve, a first balloon (4), a second balloon (5), an insufflation tube I (3), an insufflation tube II (6) and a suction tube (2), wherein the sleeve has a gastroscope channel inside; the sleeve comprises a head end tube section (11), a body tube section (12) and a tail tube section (13) which are sequentially connected from head to tail, a first channel is opened in the head end tube section (11), a second channel is opened in the body tube section (12), and a third channel is opened in the tail tube section (13), and the first channel, the second channel and the third channel are sequentially connected from head to tail to form the gastroscope channel; The silicone valve is placed in the first channel of the head end pipe section (11), one end of the suction tube (2) is connected to the tube wall of the head end pipe section (11) and communicates with the first channel, and the other end of the suction tube (2) is used to be connected to an external negative pressure suction device; The gas injection tube I (3) and the gas injection tube II (6) are both connected to the tube wall of the body tube section (12); the first balloon (4) is wrapped around the tube wall of the tail tube section (13) and is connected to the gas injection tube I (3); the second balloon (5) is wrapped around the tube wall in the middle of the body tube section (12) and is connected to the gas injection tube II (6); the gas injection tube II (6) is close to the head end tube section (11).

2. The gastroscope decompression and aspiration prevention cannula according to claim 1, characterized in that: A channel I is opened inside the sleeve, and two ends of the channel I are respectively connected to the gas injection tube I (3) and the first balloon (4).

3. The gastroscope decompression and aspiration prevention cannula according to claim 1, characterized in that: A channel II is opened inside the sleeve, and two ends of the channel II are respectively connected to the gas injection tube II (6) and the second balloon (5).

4. The gastroscope decompression and aspiration prevention sleeve according to claim 1 or 2, characterized in that: The first balloon (4) is a spherical air balloon.

5. The gastroscope decompression and aspiration prevention sleeve according to claim 1 or 3, characterized in that: The second balloon (5) is a cylindrical air balloon.

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