CN209808446U - Four-cavity two-bag tube with one-way backflow-preventing and air leakage valve - Google Patents

Abstract

The utility model relates to a four-chamber two-capsule tube with a one-way anti-reflux air leakage valve. The length direction of the main body is provided with a main lumen, a first branch lumen and a second branch lumen which are independent of each other. It communicates with the suction port, the first branch joint communicates with the gastric fundus sac through the first branch lumen, and the second branch joint communicates with the esophageal sac through the second branch lumen; it is characterized in that: the main joint, the first branch joint A one-way anti-backflow sealing valve is provided in the second branch joint so that the fluid can only flow from the outside to the inside. The utility model arranges one-way anti-reflux sealing valves in each joint, which can not only prevent the risk of air bag leakage and gastric juice reflux, but also timely absorb the blood in the esophagus and the secretions flowing in the oral cavity, avoiding Reflux of gastric juice into the trachea causes asphyxiation of the patient.

Description

Four-lumen two-capsule catheter with one-way anti-reflux valve

technical field

The utility model relates to a four-cavity two-capsule tube with a one-way anti-reflux air leakage valve, which belongs to the technical field of medical instruments.

Background technique

In clinical practice, three-chamber two-capsule catheter is often used to treat patients with gastrointestinal bleeding caused by rupture of esophageal-gastric varices. sac, esophageal sac. In clinical application, inflate the gastric fundus sac and esophageal varices successively through the air injection tubes of each balloon, perform extracorporeal traction and deflate the two balloons regularly, and relax the traction, and use the pressure of the balloons to directly compress the ruptured blood vessels of esophagus-gastric varices to achieve hemostasis Purpose.

However, the three-chamber two-capsule catheter also has shortcomings in clinical application, mainly in the following aspects: 1. After compression by the gastric pouch and the esophageal balloon, the bleeding in the esophagus above the esophageal balloon and the secretions flowing into the oral cavity cannot be removed in time, and the esophagus cannot be understood in time. Whether the bleeding of the venous plexus has stopped, and at the same time, it is easy to cause reflux and aspiration, causing the patient to cough and feel uncomfortable, or even lung infection; Injuries caused by compression of the esophagus and gastric mucosa, but some patients cannot take orally or have no swallowing function, which increases the risk of aspiration, esophagus, gastric mucosal injury and secondary bleeding; Hemostatic forceps or other clamps clamp the tracheal cavity, which adds unnecessary trouble and extra traction weight to the clinic, and it is easy to cause air leakage when the gas injection lumen is separated from the gas injection device, which will affect the traction treatment effect and increase the patient's Pain and catheterization time reduce the patient treatment rate.

Contents of the invention

The purpose of the utility model is to overcome the deficiencies in the prior art, and provide a four-cavity two-capsule tube with a one-way anti-reflux air leakage valve with ingenious structure, reasonable design and convenient operation.

According to the technical solution provided by the utility model: a four-cavity two-capsule tube with a one-way anti-reflux air leakage valve, including a main body, the front end of the main body is provided with a liquid suction port, a gastric fundus pouch and an esophageal pouch, and the main tube The inside of the main body is provided with independent main lumen, first branch lumen and second branch lumen along the length direction of the main body, and the rear end of the main body is connected with the main joint, the first branch joint and the second branch joint. The main connector communicates with the suction port through the main lumen, the first branch connector communicates with the fundus sac through the first lumen, and the second branch connector communicates with the esophageal sac through the second lumen; it is characterized in that: the main connector , The first branch joint and the second branch joint are equipped with a one-way anti-backflow sealing valve that allows the fluid to flow only from the outside to the inside.

As a further improvement of the present utility model, the front end of the main body is located on the side wall behind the esophageal sac, and an esophageal cavity suction injection port is opened inside the main body along the length direction of the main body. A third lumen separated from the second lumen, the rear end of the main body is connected with a third branch joint, and the third branch joint sucks and injects medicine through the third lumen and the esophagus lumen The mouth is connected, and a one-way anti-reflux sealing valve is also arranged in the third branch joint.

As a further improvement of the utility model, as a further improvement of the utility model, the one-way anti-backflow sealing valve includes a conical elastic membrane, and the outer edge of the large end of the conical elastic membrane is sealed and fixedly connected to the inner wall of each joint. , the tip of the tapered elastic film faces the front end of each joint, and a slit extending to the tip of the tapered elastic film is opened on the side wall of the tapered elastic film.

As a further improvement of the utility model, the one-way anti-backflow sealing valve also includes a conical support cylinder, the conical support cylinder is arranged behind the conical elastic membrane, and the shape of the conical support cylinder is the same as that of the conical elastic membrane. The shape of the sheet matches, and the center of the conical support cylinder has a hole and can be stretched open with elasticity.

As a further improvement of the utility model, the tapered elastic film is made of polymer polyurethane material, and the tapered support cylinder is made of rubber or silicone material.

As a further improvement of the present utility model, the four-chamber two-capsule tube also includes a pipe divider, one end of which is connected to the rear end of the main body, and the pipe divider is provided with a main chamber, a first sub-chamber and a second sub-chamber which are independent of each other and the third subchamber, the main chamber communicates with the main lumen, the first subchamber communicates with the first branch lumen, the second subchamber communicates with the second branch lumen, and the third subchamber communicates with the third branch lumen The cavity is connected; the main joint, the first branch joint, the second branch joint and the third branch joint are connected to the pipe distributor and communicate with the main chamber, the first sub-chamber, the second sub-chamber and the third sub-chamber respectively.

As a further improvement of the utility model, the main joint, the first branch joint, the second branch joint and the third branch joint are detachably connected to the pipe distributor, and the joints after the joints are removed are equipped with sealing plugs.

As a further improvement of the utility model, the front end of the main body is smooth and closed, and several liquid suction ports are arranged on the side wall between the front end of the main body and the fundus pouch.

As a further improvement of the utility model, the aperture of the liquid suction port is 1-1.5mm.

As a further improvement of the present invention, the length of the gastric fundus sac along the main body is shorter than the length of the esophageal sac along the main body.

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

1) The utility model has an ingenious structure and a reasonable design. By setting a one-way anti-reflux sealing valve in each joint, the utility model can prevent the risk of air bag leakage and gastric juice reflux, and at the same time can suck in time. Remove the blood in the esophagus and the secretions flowing from the mouth, and avoid suffocation of the patient caused by the reflux of gastric juice into the trachea.

2) The utility model adds an esophageal lumen suction injection port, a third lumen and a third joint. In clinical use, hemostatic medicine or paraffin oil or other lubricating fluid can be injected from the third lumen, which is beneficial to the esophageal pouch And gastric fundus pouch intermittent deflation, to prevent esophagus and gastric fundus mucosal erosion, shorten the time of catheterization, and reduce the incidence of complications.

3). The utility model provides a novel and ingenious one-way anti-backflow sealing valve structure. The conical elastic membrane is supported by the conical support cylinder. When the conical elastic membrane is subjected to a reverse force, it can be tightly attached to the On the conical support cylinder, it can prevent the conical elastic membrane from opening due to reverse collapse, effectively prevent backflow and air leakage, and ensure the sealing performance of the one-way anti-reflux sealing valve.

Description of drawings

Fig. 1 is a schematic structural diagram of an embodiment of the utility model.

Fig. 2 is a sectional view of A-A in Fig. 1 .

Figure 3 is a schematic diagram of the connection between the syringe and a joint.

Figure 4 is a schematic diagram of the connection between the syringe and a joint.

FIG. 5 is an enlarged schematic diagram of part B in FIG. 1 .

Fig. 6 is a view taken along direction C in Fig. 5 .

Description of reference signs: 1-main body, 2-suction port, 3-fundus pouch, 4-esophageal pouch, 5-main lumen, 6-first lumen, 7-second lumen, 8- The third lumen, 9-pipe divider, 9a-main chamber, 9b-first compartment, 9c-second compartment, 9d-third compartment, 10-main connector, 11-first branch connector, 12-second Branch joint, 13-third branch joint, 14-one-way anti-reflux sealing valve, 14.1-conical elastic membrane, 14.1a-incision, 14.2-conical support cylinder, 15-esophageal cavity suction injection port, 16-syringe nipple, 17-connecting pipeline.

Detailed ways

Below in conjunction with specific accompanying drawing and embodiment the utility model is further described.

As shown in Figure 1 and Figure 2, the embodiment discloses a four-chamber two-capsule tube with a one-way anti-reflux air leakage valve, including a main body 1, and a liquid suction port 2 is provided at the front end of the main body 1 , gastric fundus sac 3 and esophageal sac 4, the interior of the main body 1 is provided with independent main lumen 5, first branch lumen 6 and second branch lumen 7 along the length direction of the main body 1, the rear end of the main body 1 Connected with a main joint 10, a first branch joint 11 and a second branch joint 12, the main joint 10 communicates with the suction port 2 through the main lumen 5, and the first branch joint 11 communicates with the fundus pouch through the first branch lumen 6 3, and the second branch joint 12 communicates with the esophageal bag 4 through the second branch lumen 7; the main joint 10, the first branch joint 11 and the second branch joint 12 are provided with a valve so that the fluid can only flow from the outside to the inside One-way anti-backflow sealing valve 14.

As shown in Figure 3 and Figure 4, by setting a one-way anti-reflux sealing valve 14 in each joint, when each joint is not inserted with a syringe nipple 16 or other connecting pipeline 17, the one-way anti-reflux seal in each joint will The sealing valve 14 is automatically closed to prevent air bag leakage and gastric juice reflux. When a syringe nipple 16 or other connecting pipeline 17 is inserted in the joint, the one-way anti-backflow sealing valve 14 is penetrated by the syringe nipple 16 or other connecting pipeline 17, so that the pipeline is unblocked. In this way, the utility model can prevent the risk of air bag leakage and gastric juice reflux, and can timely absorb the blood in the esophagus and the secretions flowing in the oral cavity, so as to avoid suffocation of the patient caused by gastric juice backflow into the trachea.

As shown in Figures 1 and 2, in this embodiment, the front end of the main body 1 is located on the side wall behind the esophageal bag 4, and an esophageal cavity suction injection port 15 is opened, and the inside of the main body 1 is along the side wall of the main body 1. In the length direction, there is a third branch lumen 8 separated from the main lumen 5, the first branch lumen 6 and the second branch lumen 7, and the rear end of the main body 1 is connected with a third branch joint 13, so The third branch joint 13 communicates with the esophageal lumen suction injection port 15 through the third branch lumen 8 , and the third branch joint 13 is also provided with a one-way anti-reflux sealing valve 14 . With such a setting, hemostatic drugs, paraffin oil or other lubricating fluid can be injected from the third lumen 8 in clinical use, which is beneficial to the intermittent deflation of the esophageal and gastric fundic sacs, prevents erosion of the esophageal and gastric fundic mucosa, shortens the time of catheterization, and reduces complications. Symptoms occur.

As shown in Figures 5 and 6, in this embodiment, the one-way anti-reflux sealing valve 14 includes a conical elastic membrane 14.1, and the outer side of the large end of the conical elastic membrane 14.1 is sealed and fixedly connected to the inner walls of each joint Above, the tip of the tapered elastic membrane 14.1 faces the front end of each joint, and the side wall of the tapered elastic membrane 14.1 is provided with a slit 14.1a extending to the tip of the tapered elastic membrane 14.1. So set, when the syringe nipple 16 or other connecting pipeline 17 is inserted, the conical elastic membrane 14.1 will open, and when the syringe nipple 16 or other connecting pipeline 17 is withdrawn, the slit 14.1a of the conical elastic membrane 14.1 will be closed Closed to prevent backflow and air leaks.

As shown in Fig. 5 and Fig. 6, in this embodiment, the one-way anti-reflux sealing valve 14 also includes a conical support cylinder 14.2, and the conical support cylinder 14.2 is arranged behind the conical elastic membrane 14.1. The shape of the shaped support tube 14.2 matches the shape of the tapered elastic film 14.1 sheet, and the center of the tapered support tube 14.2 has a hole and has elastic energy to be stretched. In this way, when liquid or gas flows in reverse to the one-way anti-backflow sealing valve 14, the conical elastic membrane 14.1 will receive a reverse force and cling to the conical support cylinder 14.2, avoiding the conical elastic The membrane 14.1 is opened due to reverse collapse, which ensures the sealing performance of the one-way anti-reflux sealing valve 14 .

In this embodiment, the tapered elastic membrane 14.1 is preferably made of polymer polyurethane material, and the tapered support cylinder 14.2 is preferably made of rubber or silicone material. Such setting can ensure the sealing performance of the one-way anti-backflow sealing valve 14 .

As shown in Figure 1, in this embodiment, the four-chamber two-capsule tube also includes a pipe divider 9, one end of which is connected to the rear end of the main body 1, and a mutually independent main chamber 9a is provided in the pipe divider 9 , the first subchamber 9b, the second subchamber 9c and the third subchamber 9d, the main chamber 9a communicates with the main chamber 5, the first subchamber 9b communicates with the first branch lumen 6, and the second subchamber 9c communicates with the second subchamber 9c The two branch lumens 7 communicate, and the third compartment 9d communicates with the third branch lumen 8; the main joint 10, the first branch joint 11, the second branch joint 12 and the third branch joint 13 are connected to the pipe distributor 9 and correspondingly communicate with the main chamber 9a, the first subchamber 9b, the second subchamber 9c and the third subchamber 9d. The main joint 10 , the first branch joint 11 , the second branch joint 12 and the third branch joint 13 are preferably set as detachable connections with the pipe distributor 9 , and the joints are equipped with sealing plugs after the joints are removed. With this setting, joints can be installed according to actual needs, and if there is a problem with the one-way anti-reflux sealing valve 14 in a certain joint, only the corresponding joint needs to be replaced, and there is no need to replace a new tube, which reduces the cost of use and avoids The pain caused by repeated catheterization was eliminated.

As shown in Figure 1, in this embodiment, the front end of the main body 1 is smooth and closed, and several liquid suction ports 2 are arranged on the side wall between the front end of the main body 1 and the fundus pouch 3 . Such a setting can avoid causing the patient to absorb liquid without dead ends and ensure thorough liquid absorption. The aperture diameter of the liquid suction port 2 is preferably set at 1-1.5 mm.

As shown in FIG. 1 , in this embodiment, the length of the gastric fundus sac 3 along the main body 1 is shorter than the length of the esophageal sac 4 along the main body 1 . Such setting is more in line with the physiological structure characteristics in the human body, making clinical use more reliable and convenient.

The above descriptions are only preferred embodiments of the present utility model, and the above specific embodiments do not limit the present utility model. Within the scope of the technical ideas of the present utility model, various deformations and modifications can occur, and any retouching, modification or equivalent replacement made by those skilled in the art according to the above descriptions all belong to the protection scope of the present utility model.

Claims (10)

1. The four-cavity two-sac tube with the one-way backflow-preventing and gas leakage valve comprises a main tube body (1), wherein the front end of the main tube body (1) is provided with a liquid suction port (2), a stomach fundus sac (3) and an oesophagus sac (4), the main tube body (1) is internally provided with a main tube cavity (5), a first branch tube cavity (6) and a second branch tube cavity (7) which are mutually independent along the length direction of the main tube body (1), the rear end of the main tube body (1) is connected with a main joint (10), a first branch joint (11) and a second branch joint (12), the main joint (10) is communicated with the liquid suction port (2) through the main tube cavity (5), the first branch joint (11) is communicated with the stomach fundus sac (3) through the first branch tube cavity (6), and the second branch joint (12) is communicated with the oesophagus sac (4) through the second branch tube cavity (7); the method is characterized in that: and one-way anti-backflow sealing valves (14) which enable fluid to flow only from outside to inside are arranged in the main joint (10), the first branch joint (11) and the second branch joint (12).

2. The four-lumen two-balloon catheter with one-way anti-reflux air-leakage valve according to claim 1, wherein: the utility model discloses a medical device, including main pipe body (1), first branch pipe chamber (6) and second branch pipe chamber (7), be provided with esophagus chamber attraction injection mouth (15) on the lateral wall that is located esophagus bag (4) back position at main pipe body (1) front end, main pipe body (1) inside along the length direction who is responsible for main pipe body (1) seted up with main pipe chamber (5), first branch pipe chamber (6) and second branch pipe chamber (7) separate third branch pipe chamber (8), main pipe body (1) rear end is connected with third branch connects (13), third branch connects (13) and attracts injection mouth (15) intercommunication in esophagus chamber through third branch pipe chamber (8), is provided with sealed flap (14) of one-way anti-reflux in third branch connects (13) equally.

3. The four-chamber two-bag tube with the one-way backflow-preventing air leakage valve as claimed in claim 1 or 2, wherein: the one-way backflow-preventing sealing valve (14) comprises a conical elastic membrane (14.1), the outer side edge of the large end of the conical elastic membrane (14.1) is fixedly connected with the inner wall of each joint in a sealing mode, the tip of the conical elastic membrane (14.1) faces the front end of each joint, and a cutting seam (14.1a) extending to the tip of the conical elastic membrane (14.1) is formed in the side wall of the conical elastic membrane (14.1).

4. The four-lumen two-balloon catheter with one-way anti-reflux air-leakage valve according to claim 3, wherein: the one-way backflow-preventing sealing valve (14) further comprises a conical supporting cylinder (14.2), the conical supporting cylinder (14.2) is arranged behind the conical elastic membrane (14.1), the shape of the conical supporting cylinder (14.2) is matched with that of a piece of the conical elastic membrane (14.1), and the center of the conical supporting cylinder (14.2) is provided with a hole and has elastic performance to be stretched.

5. The four-lumen two-balloon catheter with one-way anti-reflux air-leakage valve according to claim 4, wherein: the conical elastic membrane (14.1) is made of high-molecular polyurethane material, and the conical supporting cylinder (14.2) is made of rubber or silica gel material.

6. The four-lumen two-balloon catheter with one-way anti-reflux air-leakage valve according to claim 2, wherein: the four-cavity two-bag tube further comprises a tube divider (9), one end of the tube divider (9) is connected to the rear end of the main tube body (1), a main chamber (9a), a first branch chamber (9b), a second branch chamber (9c) and a third branch chamber (9d) which are independent of each other are arranged in the tube divider (9), the main chamber (9a) is communicated with the main tube cavity (5), the first branch chamber (9b) is communicated with the first branch tube cavity (6), the second branch chamber (9c) is communicated with the second branch tube cavity (7), and the third branch chamber (9d) is communicated with the third branch tube cavity (8); the main joint (10), the first branch joint (11), the second branch joint (12) and the third branch joint (13) are connected to the pipe divider (9) and are correspondingly communicated with the main chamber (9a), the first branch chamber (9b), the second branch chamber (9c) and the third branch chamber (9d) respectively.

7. The four-lumen two-balloon catheter with one-way anti-reflux air-leakage valve according to claim 1, wherein: the main joint (10), the first branch joint (11), the second branch joint (12) and the third branch joint (13) are detachably connected with the pipe divider (9), and joints after the joints are detached are provided with sealing plugs.

8. The four-lumen two-balloon catheter with one-way anti-reflux air-leakage valve according to claim 1, wherein: the front end of the main tube body (1) is smooth and closed, and a plurality of liquid suction ports (2) are arranged on the side wall between the front end of the main tube body (1) and the stomach fundus sac (3).

9. The four-lumen two-balloon catheter with one-way anti-reflux air-leakage valve according to claim 6, wherein: the aperture of the liquid suction port (2) is 1-1.5 mm.

10. The four-lumen two-balloon catheter with one-way anti-reflux air-leakage valve according to claim 1, wherein: the length of the stomach fundus pouch (3) along the main tube body (1) is less than the length of the esophageal pouch (4) along the main tube body (1).