Patent ID: 12239806

BEST MODE

A peritoneal cavity-bladder connecting catheter for ascites drainage according to an embodiment of the present disclosure will now be described in detail with reference to the accompanying drawings.

FIG.3is a view for explaining a procedure environment of a peritoneal cavity-bladder connecting catheter for ascites drainage according to an embodiment of the present disclosure.FIG.4is an enlarged view of a portion IV ofFIG.3, and illustrates a state where a guide mechanism for guiding an embodiment of the present disclosure to a bladder wall perforates the bladder wall.FIG.5is a view illustrating a state where the embodiment of the present disclosure is inserted into the perforated portion of the bladder wall.FIG.6is a view illustrating a state where the guide mechanism for guiding the embodiment of the present disclosure has been removed and a balloon support part employed in the embodiment of the present disclosure has been expanded.FIG.7is a view for explaining a process in which ascites are discharged to a bladder, according to an embodiment of the present disclosure.

As shown inFIGS.5through7, the peritoneal cavity-bladder connecting catheter for ascites drainage according to an embodiment of the present disclosure enables the ascites within a peritoneal cavity A to be discharged in urine through a bladder B by connecting the peritoneal cavity A to the bladder B so that fluid is movable, and includes a peritoneal cavity position part1and a bladder position part2.

The peritoneal cavity position part1is positioned on the side of the peritoneal cavity A by passing a bladder wall C positioned between the peritoneal cavity A and the bladder B. Inlets11through which the ascites flow into an inner space D are formed in the peritoneal cavity position part1, and the peritoneal cavity position part1is formed as a film that surrounds the inner space D.

The bladder wall C separates the peritoneal cavity A from the bladder B, as shown inFIGS.3and4, and is formed of a muscle tissue that may be perforated by a guide mechanism7such as a medical needle or wire. As shown inFIG.3, the present embodiment is able to access up to the bladder wall C through a mirror of the bladder B that enables the inside of the bladder B to be watched and operated.

As show inFIG.5, the catheter according to the present embodiment includes the peritoneal cavity position part1positioned on the side of the peritoneal cavity A by passing a hole perforated in the bladder wall C when being positioned within the bladder B by being guided by the mirror of the bladder B, and the bladder position part2positioned in the bladder B existing on the side of the bladder wall C opposite to the peritoneal cavity position part1.

The peritoneal cavity position part1includes the inner space D closed from the outside therein by being formed as a film, and, as shown inFIG.7, includes a plurality of inlets11for communicating the inner space D with the peritoneal cavity A so that fluid is movable.

The bladder position part2is integrally formed with the peritoneal cavity position part1and positioned on the side of the bladder B located on the side of the bladder wall C opposite to the peritoneal cavity A. As shown inFIG.7, the bladder position part2includes outlets21enabling the ascites flowed into the peritoneal cavity position part1to be discharged to the outside, and is formed as a film to form the closed inner space D together with the peritoneal cavity position part1.

The peritoneal cavity position part1and the bladder position part2may be formed of the same material as that of a medical catheter that is inserted into an organ or tissue of a human body.

The peritoneal cavity-bladder connecting catheter for ascites drainage according to an embodiment of the present disclosure having such a structure is configured such that the peritoneal cavity position part1formed as a film may be guided by the mirror of the bladder B and thus positioned within the peritoneal cavity A by penetrating through the bladder wall C, the bladder position part2forming the closed inner space D together with the peritoneal cavity position part1may remain within the bladder B, and the ascites within the peritoneal cavity A may be discharged in urine through the bladder B through the inlets11formed in the peritoneal cavity position part1and the outlets21formed in the bladder position part2. Accordingly, the peritoneal cavity-bladder connecting catheter for ascites drainage according to an embodiment of the present disclosure enables repetitive ascites drainage even by a single procedure, and does not require a separate drainage mechanism for ascites drainage and thus not cause discomfort in movement, thereby enabling high-quality medical service provision.

The present embodiment includes a balloon support part3for firmly supporting the peritoneal cavity position part1and the bladder position part2onto the bladder wall C.

In other words, as shown inFIGS.5and6, the balloon support part3is swollen like a balloon when the peritoneal cavity position part1is positioned on the side of the peritoneal cavity A and the bladder position part2is positioned on the side of the bladder B, thereby enabling the peritoneal cavity position part1and the bladder position part2to be firmly supported by the bladder wall C.

The balloon support part3may have a tube structure that is formed to surround respective outer circumferential surfaces of the peritoneal cavity position part1and the bladder position part2.

Each of the peritoneal cavity position part1and the bladder position part2includes a passage for injecting air into the balloon support part3.

A process in which the catheter according to the present embodiment is inserted into the bladder wall C and an ascites discharging process will now be described.

In other words, the catheter according to the present embodiment is guided by the guide mechanism7ofFIG.4and is inserted into the hole perforated in the bladder wall C as shown inFIG.5. Thereafter, as shown inFIG.6, the balloon support part3is expanded due to the air injected thereinto through the passage, and thus the present embodiment is firmly supported by the bladder wall C, and then the guide mechanism7is removed from the bladder wall C.

As described above, since the present embodiment is firmly supported by the bladder wall C, even when a punch for repetitive ascites drainages is not performed, the ascites within the peritoneal cavity A are naturally drained to the bladder B through the peritoneal cavity position part1and the bladder position part2and finally discharged in urine, as shown inFIG.7.

In the present embodiment having such a structure, because air is injected into the balloon support part3through the passage when the peritoneal cavity position part1is positioned within the peritoneal cavity A and the bladder position part2is positioned within the bladder B, a locking area between the balloon support part3swollen due to the air injection and the bladder wall C increases, and thus the peritoneal cavity position part1and the bladder position part2may be prevented from deviating from their original positions through the hole perforated in the bladder wall C.

A backflow prevention part4may be provided in the inner space D formed by the peritoneal cavity position part1and the bladder position part2. In other words, the backflow prevention part4prevents the ascites flowed into the inner space D formed by the peritoneal cavity position part1and the bladder position part2from flowing back into the peritoneal cavity A.

The peritoneal cavity position part1and the bladder position part2may include, at their centers, a through hole5which is distinguished from the inner space D and through which the guide mechanism7such as a guide wire or needle passes.

In other words, as shown inFIG.3, the mirror of the bladder B for guiding the catheter according to the present embodiment is inserted into the urethra for a procedure using the catheter. Such an insertion of the mirror of the bladder B into the urethra enables a procedure within the bladder B. In this state, before the catheter according to the present embodiment is inserted into the mirror of the bladder B, the guide mechanism7for perforating the bladder wall C is first made access the bladder wall C through the mirror of the bladder B, as shown inFIG.4.

Then, the bladder wall C is perforated using the guide mechanism7, and, when the guide wire is inserted into the through hole5of the present embodiment, the present embodiment is moved as shown inFIG.5such that a portion of the present embodiment passes through a perforated portion of the bladder wall C and the remaining portion of the present embodiment is positioned within the bladder B. Through this process, the peritoneal cavity A and the bladder B may be connected to each other so that fluid is movable.

As shown inFIGS.6and7, the present embodiment further includes a backflow prevention check valve6provided in the through hole5, and thus may be configured so that the ascites may be prevented from flowing back into the peritoneal cavity A through the through hole5.

Although various embodiments of the present disclosure have been described above, the present embodiments and the drawings attached to the present specification merely show a part of the technical spirit included in the present disclosure. It will be apparent that modifications and specific embodiments that can be easily inferred by those skilled in the art within the scope of the technical idea are included in the scope of the present disclosure.