CN111407939A - Body cavity negative pressure drainage system based on absorbable porous foaming material - Google Patents

Abstract

The invention discloses a body cavity negative pressure drainage system based on an absorbable porous foaming material, which comprises a balloon, wherein joints are arranged at two ends of the balloon, a one-way valve structure is arranged in each joint, a main drainage pipe is connected with the joint at one side of the balloon, the tail end of the main drainage pipe is communicated with a plurality of branch drainage pipes, the tail ends of the branch drainage pipes are inserted with the absorbable porous foaming material which can be separated, and a drainage bag is connected with the joint at one side of the balloon. The balloon is pressed, the porous structure of the absorbable porous foaming material can generate a siphoning effect, and drainage liquid can be sucked into the porous foaming material to keep the high-risk area dry and promote tissue healing; the balloon is repeatedly pressed, and the drainage liquid is sucked into the drainage bag under the action of the two unidirectional check valve structures; after the tissue is healed, the integrated main drainage pipe and branch drainage pipe can be pulled out, and the absorbable porous foaming material in the body can be absorbed by the body.

Description

Body cavity negative pressure drainage system based on absorbable porous foam material

technical field

The invention relates to the technical field of medical devices, in particular to a body cavity negative pressure drainage system based on absorbable porous foam materials.

Background technique

Drainage after body cavity surgery is an important part of surgery. After surgery, local tissue exudate, digestive tract fluid, lymph fluid and other fluids need to be drained to the outside of the body. Postoperative fluid accumulation, especially corrosive digestive fluid and fluid containing pathogens, if it cannot be accurately drained to the body, local accumulation may cause serious clinical problems such as poor local tissue healing, infection, local tissue corrosion and bleeding, etc. , these problems can even cause serious surgical complications, lead to secondary operations and even death of patients. Dealing with these problems increases the suffering of patients and takes up a lot of medical resources. The problem is more serious in the presence of gastrointestinal fistulas or poor anastomotic healing.

At present, the drainage tube is mainly used in clinic to drain local effusion. This method requires the effusion to flow naturally to the drainage tube area, the gastrointestinal fistula area or the poorly healed anastomotic area, and the tissue cannot be dried, the drainage tube is easily separated from the drainage area, and the tissue separation causes drainage. problems, etc. These problems cannot be completely solved under the current drainage tube drainage model.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a body cavity negative pressure drainage system based on absorbable porous foam material, so as to solve the technical problems that the existing drainage tube has poor drainage effect and the tissue cannot be dried.

To achieve the above object, the present invention provides the following technical solutions:

The body cavity negative pressure drainage system based on absorbable porous foam material includes a balloon, the two ends of the balloon are joints, and each joint has a built-in one-way valve structure, and the one side joint of the balloon is connected with a A drainage main pipe, the end of the drainage main pipe is connected with a plurality of drainage branch pipes, the end of the drainage branch pipe is inserted with a separable absorbable porous foam material, and a drainage bag is connected to a joint on one side of the balloon.

Further, the absorbable porous foam material is used for wrapping the anastomosis or filling the body cavity and is foamed from a medical absorbable material, and the absorbable porous foam material has a soft porous structure.

Further, the drainage branch pipe and the absorbable porous foam material are connected in a split-type removable manner.

Further, the drainage branch tube is a single tube or a plurality of tubes.

Further, side holes or grooves are formed on the side wall of the drainage branch pipe.

Further, the one-way valve structure is a diaphragm structure protruding outward, and a slit is opened in the center of the diaphragm structure.

Compared with the prior art, the beneficial effects of the present invention are:

During use, the porous foam material is filled in the high-risk areas of postoperative fluid accumulation and body fluid leakage. Due to the siphon effect of the porous structure, the drainage fluid can be sucked into the porous foam material to keep the high-risk area dry and promote tissue. Healing; pressing the balloon repeatedly, the drainage fluid will pass through the drainage branch pipe, the drainage main pipe, and the balloon in sequence, and finally be sucked into the drainage bag; after the tissue heals, the integrated drainage can be removed. The main pipe and the drainage branch pipe are absorbed by the porous foam material in the body. This system solves the problems that the current drainage tube system requires the effusion to flow naturally to the drainage main area, the digestive tract fistula area or the poor anastomotic healing area cannot achieve tissue dryness, the drainage main pipe is easy to leave the drainage area, and the tissue separation causes poor drainage.

Description of drawings

1 is a schematic structural diagram of a body cavity negative pressure drainage system in an embodiment of the present invention;

FIG. 2 is a schematic diagram of the structure of the one-way valve.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

As shown in FIG. 1 , the body cavity negative pressure drainage system capable of absorbing porous foam material includes a balloon 1, the two ends of the balloon 1 are joints, and each joint 1 has a built-in one-way valve structure 2, One side of the balloon 1 is connected with a drainage main pipe 3, the end of the drainage main pipe 3 is connected with a number of drainage branch pipes 4, and a separable absorbable porous foam material 5 is inserted at the end of the drainage branch pipe 4. 1 A drainage bag 6 is connected to one side joint.

In this embodiment, the two one-way valve structures are arranged in the same direction, and the absorbable porous foam material is foamed from a medical absorbable material, which is a porous soft material after foaming, which can be used to wrap an anastomosis or fill a body cavity. It can be made of, but not limited to, polyglycolide, polylactide and other biodegradable materials, and its foaming pore size is adjusted according to clinical needs. In this structure, the drainage pipe includes a drainage branch pipe and a drainage main pipe. The drainage pipe is an integral structure. The drainage pipe and the absorbable porous foam material are of a separate design. Separate and remove the drainage tube.

The drainage pipe is made of hard material, and there are one or more drainage branch pipes. If it is one, the diameter of the drainage pipe is the same as that of the main drainage pipe. The drainage tube is pulled out of the body as a whole. When in use, the connection position between the drainage main tube and the balloon joint is located outside the body. The side wall of the drainage branch pipe is provided with side holes or grooves.

The balloon is made of silica gel or other materials, and there are one-way valve structures on both sides of the balloon. The one-way valve structure on the side close to the drainage main pipe restricts liquid and gas from flowing to the balloon only from the drainage main pipe; the side close to the drainage bag The one-way valve structure restricts the flow of liquid and gas from the balloon to the drainage bag.

The method of using the negative pressure drainage system of the body cavity is as follows:

Fill or surround the high-risk areas of body fluid leakage or leakage in the body cavity with the absorbable porous foam material. At this time, most of the drainage main pipe, as well as the drainage branch pipe and the absorbable porous foam material are located in the body cavity, and the outer end of the drainage main pipe is exposed outside the body. It is connected with the balloon, and the balloon is connected with the drainage bag. After squeezing the balloon, the balloon is under negative pressure, and the negative pressure is transmitted to the absorbable porous foam material through the drainage main pipe and the drainage branch pipe, so that the liquid and gas in the absorbable porous foam material flow into the balloon along the drainage branch pipe and the drainage main pipe. After a certain amount of liquid or gas is accumulated in the balloon, the liquid can be discharged into the drainage bag by squeezing the balloon, while maintaining the negative pressure in the balloon, and repeatedly squeezing the balloon to achieve continuous liquid extraction. After the tissue in the body is healed, the drainage tube can be removed, and the absorbable porous foam material will be absorbed by itself in the body.

In this structure, the absorbable porous foam material is arranged in the body to fill or surround the high-risk area where body fluid seeps or leaks out. Dryness of the risk area favors healing. The drainage branch tube is provided with a plurality of side holes or grooves, and at the same time, negative pressure is generated by the extracorporeal balloon, so that the excess liquid absorbed by the absorbable porous foam material can enter the balloon through the side holes or grooves.

As a specific structure of the one-way valve structure, as shown in FIG. 2 , the one-way valve structure is a diaphragm structure protruding outward, and a slit is opened in the center of the diaphragm structure. In the figure, the liquid And the air flow can only flow from the inside to the outside (that is, from left to right as shown in the figure), while the liquid and air flow from the outside to the inside when the slit is closed, blocking the reverse flow of the liquid and the air flow. Specifically, the balloon is provided with a one-way valve structure close to the inner side of the body. When the balloon is pressed, the liquid gas in the balloon cannot flow back into the body cavity, and the negative pressure generated in the balloon after pressing can be transmitted to the body through the drainage tube. The area of foamed material enables the drainage fluid to be drawn into the balloon. At the same time, after accumulating liquid or gas in the balloon, the liquid or gas is discharged into the drainage bag by pressing the balloon. Due to the existence of the one-way valve on the side of the drainage bag, the liquid in the drainage bag cannot flow back into the balloon.

It should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any relationship between these entities or operations. any such actual relationship or sequence exists. Moreover, the terms "comprising", "comprising" or any other variation thereof are intended to encompass a non-exclusive inclusion such that a process, method, article or device that includes a list of elements includes not only those elements, but also includes not explicitly listed or other elements inherent to such a process, method, article or apparatus.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, and substitutions can be made in these embodiments without departing from the principle and spirit of the invention and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (6)

1. Body cavity negative pressure drainage system based on can absorb porous expanded material, a serial communication port, body cavity negative pressure drainage system includes the sacculus, the sacculus both ends are for connecting, and every connects and all embeds there is the check valve structure, sacculus one side articulate has the drainage to be responsible for, the drainage is responsible for terminal intercommunication has a plurality of drainage branch pipes, drainage branch pipe end inserts has separable can absorb porous expanded material, sacculus one side articulate has the drainage bag.

2. The body cavity negative pressure drainage system based on absorbable porous foaming material is characterized in that the absorbable porous foaming material is used for wrapping anastomotic openings or filling body cavities and is made of medical absorbable material through foaming, and the absorbable porous foaming material is of a soft porous structure.

3. The negative-pressure drainage system for body cavities based on absorbable porous foaming materials, which is characterized in that the drainage branch pipe and the absorbable porous foaming materials are connected in a split-type removable mode.

4. The system of claim 3, wherein the drainage manifold is a single tube or a plurality of tubes.

5. The system of claim 4, wherein the side wall of the drainage branch tube is provided with a side hole or a groove.

6. The system of claim 5, wherein the one-way valve structure is an outwardly protruding flap structure with a slit in the center.

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