Internal drainage tube for drainage of ascites

Abstract

The present invention relates to an internal drainage tube for draining ascites having an improved structure that allows intraperitoneal ascites to be discharged as urine through the bladder and can secure a large fixing force against the bladder wall, which is the basis for separating the areas between the abdominal cavity and the bladder.

Description

[Technical field]

[0001] The present invention relates to an internal drainage tube for draining ascites, and more particularly to an internal drainage tube for draining ascites having an improved structure that allows ascites in the abdominal cavity to be discharged as urine through the bladder and can secure a large fixing force to the bladder wall, which is the basis for dividing the area between the abdominal cavity and the bladder. [Background technology]

[0002] In cases of liver cirrhosis or peritoneal dissemination (peritoneal carcinomatosis (when cancer metastasis to the peritoneum occurs from stomach cancer, colon cancer, pancreatic cancer, ovarian cancer, etc.), ascites, a condition in which fluid accumulates in the peritoneal cavity, occurs. If ascites worsens, the patient will experience abdominal distension, accompanied by symptoms such as nausea, pain, and behavioral disorders.

[0003] In such cases, as shown in Figures 1 and 2, repeated ascites paracentesis (a procedure in which the abdomen is repeatedly pierced with a needle and ascites is drained outside the abdomen) must be performed in order to improve symptoms, but the improvement in symptoms does not last long, and the patient must undergo repeated ascites paracentesis on a daily basis (about 2 to 3 liters of ascites are cultured during each procedure). Since such a procedure requires piercing the abdomen with a thick needle to the inside of the peritoneum, repeated ascites paracentesis causes many inconveniences such as pain, and the more times it is performed, the more likely it is that the intestine will be pierced, causing intestinal perforation, or that many complications such as bleeding and infection will occur due to the procedure.

[0004] Although there is a catheter insertion technique that passes through the barrier (percutaneous catheter drainage: PCD), this also involves leaving the catheter outside the abdominal wall, which is difficult to maintain for several days and increases the risk of infection over time. In addition, as it is an external drainage technique, it places restrictions on the patient's movements, inducing many inconveniences in daily life.

[0005] As such, conventional catheters for draining ascites have problems in that they are difficult to fix to the human body, and pain and complications occur due to repeated procedures, causing inconvenience to the patient.

[0006] Prior art includes Korean Patent Registration No. 10-1671612. Summary of the Invention [Problem to be solved by the invention]

[0007] The present invention has been devised to solve the above-mentioned problems, and an object of the present invention is to provide an internal drainage tube for draining ascites, which smoothly drains ascites from the abdominal cavity to the bladder, prevents fluid in the bladder from flowing back into the abdominal cavity, increases the fixing force to the human body, prevents pain and complications due to repeated procedures for draining ascites, minimizes inconvenience to the patient, and does not interfere with the patient's behavior or life.

[0008] The problems to be solved by the present invention are not limited to those mentioned above, and other problems to be solved that are not mentioned will be clearly understood by those skilled in the art from the following description. [Means for solving the problem]

[0009] In order to achieve the above object, the internal drainage tube for draining ascites according to the present invention includes a tubular main conduit section that passes through the bladder wall, which is the criterion for dividing the area between the abdominal cavity and the bladder, and has both ends located in the abdominal cavity and the bladder, respectively, so that a flow path through which fluid can move freely is formed inside; an end of the main conduit section that extends from the main conduit section and is located on the abdominal cavity side; the main conduit section passes through the inside of the laparoscope in a long state along the same axis as the main conduit section, approaches the bladder wall, and after approaching, when it is removed from the inside of the laparoscope, it is rolled up into a ring shape by elastic restoring force. and a bladder-side anchoring part extending from the other end of the main conduit part and positioned on the bladder side, passing through the inside of the laparoscope while being arranged long along the same axis as the main conduit part and approaching the bladder wall, and after approaching, being rolled up into a ring shape by elastic restoring force and positioned in the bladder when removed from the inside of the laparoscope, and having an outlet through which the ascites is discharged, and a bladder-side anchoring part provided with a check valve for selectively opening and closing the outlet.

[0010] The check valve is in the form of a membrane having one side connected to a portion adjacent to the outlet so that the outlet can be selectively opened and closed, and is also a check valve of an elastic membrane structure that is elastically deformable due to pressure caused by fluid movement of the ascites discharged to the outlet.

[0011] It is preferable that the check valve be relatively thicker toward one side connected to a portion adjacent to the outlet so that the shape restoring force due to elastic deformation for closing the outlet can be increased when the discharge of the ascites is completed.

[0012] The check valve is formed in a convex shape at a position opposite the outlet so as to prevent bladder-side fluid from flowing back into the outlet and to increase the closing force for the outlet, and further includes a sealing protrusion that is fitted into the outlet when the outlet is closed.

[0013] It is desirable that the bladder side anchoring portion includes an insertion groove into which a frame portion of the check valve is inserted so as to increase the adhesive force with the check valve when the check valve closes the outlet.

[0014] The abdominal cavity side anchoring portion is in the form of a membrane having one side connected to a portion adjacent to the inlet inside the abdominal cavity side anchoring portion through which ascites moves, so as to prevent fluid from flowing into the abdominal cavity through the inlet, and may further include an abdominal cavity side check valve that is elastically deformed by pressure caused by the fluid movement of the ascites flowing into the inlet, and selectively opens and closes the inlet. Effect of the Invention

[0015] The internal drainage pipe for draining ascites according to the present invention having the above-mentioned configuration forms a flow path inside a main conduit portion, both sides of the main conduit portion are disposed in the abdominal cavity and the bladder, respectively, the abdominal cavity side anchoring portion is located on the abdominal cavity side and is rolled up into a ring shape by elastic restoring force, and is provided with an inlet for inflow of ascites, the bladder side anchoring portion is located on the bladder side and is rolled up into a ring shape by elastic restoring force, forming an outlet for draining ascites, and is provided with a check valve for selectively opening and closing the outlet, thereby enabling smooth drainage of ascites from the abdominal cavity to the bladder, preventing fluid in the bladder from flowing back into the abdominal cavity, increasing the fixing force to the human body, preventing pain and complications due to repeated procedures for draining ascites, minimizing inconvenience to the patient, and preventing interference with behavior and life.

[0016] The effects of the present invention are not limited to those mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the following description. [Brief description of the drawings]

[0017] [Figure 1] 1A to 1C are diagrams for explaining an ascites drainage procedure according to the prior art. [Diagram 2]1A to 1C are diagrams for explaining an ascites drainage procedure according to the prior art. [Diagram 3] FIG. 2 is a diagram for explaining a treatment environment of the internal drainage tube for draining ascites according to the first embodiment of the present invention. [Figure 4] FIG. 1 is a perspective view of a first embodiment of the present invention. [Diagram 5] FIG. 2 is a view showing the treated state of the first embodiment of the present invention. [Figure 6] 6 is a cross-sectional view taken along line VI-VI of FIG. 5, illustrating a check valve provided adjacent to the discharge port. [Figure 7] 4A to 4C are diagrams for explaining a state in which a discharge port is opened and closed by a check valve employed in the first embodiment of the present invention. [Figure 8] FIG. 11 is a partial cross-sectional view illustrating a check valve employed in an internal drainage tube for draining ascites according to a second embodiment of the present invention. [Figure 9] FIG. 11 is a perspective view illustrating an internal drainage tube for draining ascites according to a third embodiment of the present invention. [Figure 10] FIG. 11 is a partial cross-sectional view for explaining a check valve and an insertion groove employed in a third embodiment of the present invention. [Figure 11] FIG. 13 is a diagram for explaining an internal drainage tube for draining ascites according to a fourth embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] Hereinafter, an internal drainage tube for draining ascites according to a first embodiment of the present invention will be described in detail with reference to the accompanying drawings.

[0019] FIG. 3 is a drawing to explain the operation environment of an internal drainage tube for draining ascites according to the first embodiment of the present invention, FIG. 4 is an oblique view of the first embodiment of the present invention, FIG. 5 is a drawing showing the operated state of the first embodiment of the present invention, FIG. 6 is a cross-sectional view of VI-VI of FIG. 5 and is a drawing to explain a check valve installed adjacent to the outlet, and FIG. 7 is a drawing to explain the state in which the outlet is opened and closed by the check valve adopted in the first embodiment of the present invention.

[0020] As preferably shown in the drawings, the internal drainage tube for draining ascites according to the first embodiment of the present invention comprises a main conduit portion 100, a peritoneal cavity side anchoring portion 200 and a bladder side anchoring portion 300.

[0021] The main conduit portion 100 is tubular, forms a flow path inside to allow free fluid movement, passes through the bladder wall 10, which is the basis for dividing the areas between the abdominal cavity B and the bladder A, and has both ends located in the abdominal cavity B and the bladder A, respectively.

[0022] After being removed from the inside of the laparoscope, the main conduit portion 100 is inserted into the bladder wall 10 and disposed in the bladder wall, so that the flow path can communicate between the abdominal cavity B and the bladder A. Therefore, ascites in the abdominal cavity B flows into the flow path of the main conduit portion 100, moves to the bladder A and is discharged.

[0023] One end of the main conduit section 100 is connected to an abdominal cavity side anchoring section 200 and is located in the abdominal cavity, and ascites generated inside the abdominal cavity is transferred to the other end of the main conduit section 100. The other end of the main conduit section 100 is connected to a bladder side anchoring section 300 and is located in the bladder, and ascites transferred along the flow path of the main conduit section is discharged into the bladder.

[0024] The main conduit portion 100 is made of a flexible, corrosion-resistant material, and can be integral with the abdominal cavity side anchoring portion 200 and the bladder side anchoring portion 300 .

[0025] The abdominal cavity side anchoring portion 200 is extended from one end of the main conduit portion 100 and is located on the abdominal cavity B side. It passes through the inside of the laparoscope 20 while being arranged long along the same axis as the main conduit portion 100 and approaches the bladder wall 10. After approaching, when it is removed from the inside of the laparoscope 20, it is rolled up into a ring shape (pigtail type) by its elastic restoring force.

[0026] In addition, the abdominal cavity side anchoring portion 200 forms an ascites inlet 210 connected to the flow path of the main conduit portion, thereby allowing the ascites inside the abdominal cavity to flow into the inlet 210 and move along the flow path to the bladder side anchoring portion 300.

[0027] The abdominal cavity side anchoring portion 200 is rolled up into a ring shape while positioned in the abdominal cavity, thereby preventing the abdominal cavity side anchoring portion 200 from being pulled out of the abdominal cavity via the bladder wall 10, and preventing the main conduit portion 100 from being moved arbitrarily in the bladder wall.

[0028] The bladder side anchoring portion 300 is extended from the other end of the main conduit portion 100 and is located on the bladder A side. It passes through the inside of the laparoscope 20 while being arranged long along the same axis as the main conduit portion 100 and approaches the bladder wall 10. After approaching, when it is removed from the inside of the laparoscope 20, it is rolled up into a ring shape by elastic restoring force and is located in the bladder A, and is provided with a discharge port 310 through which the ascites is discharged.

[0029] In addition, the bladder side anchoring portion 300 is provided with a check valve 320 adjacent to the outlet 310 for selectively opening and closing the outlet 310, thereby discharging the ascites into the bladder A and preventing fluid inside the bladder from flowing back into the main conduit portion 100 after the ascites is discharged.

[0030] When positioned in bladder A, the bladder side anchoring portion 300 is rolled up into a ring shape, thereby preventing the bladder side anchoring portion 300 from moving toward the abdominal cavity side via the bladder wall 10, and preventing the main conduit portion 100 from moving arbitrarily within the bladder wall 10.

[0031] The internal drainage tube for draining ascites according to the first embodiment of the present invention having such a configuration forms a flow path inside the main conduit portion 100, both sides of the main conduit portion 100 are disposed in the abdominal cavity B and the bladder A, respectively, the abdominal cavity side anchoring portion 200 is located on the abdominal cavity B side and is rolled up into a ring shape by elastic restoring force, and is provided with an inlet 210 for the inflow of ascites, the bladder side anchoring portion 300 is located on the bladder side and is rolled up into a ring shape by elastic restoring force, forming an outlet 310 for draining ascites, and is provided with a check valve 320 for selectively opening and closing the outlet 310, thereby smoothly draining ascites from the abdominal cavity to the bladder, preventing fluid in the bladder from flowing back into the abdominal cavity, increasing the fixing force to the human body, preventing pain and complications due to repeated operations for draining ascites, minimizing the inconvenience of the patient, and preventing interference with behavior and life.

[0032] In addition, the check valve 320 in this embodiment is in the form of a membrane having one side connected to a portion adjacent to the outlet 310, and has an elastic membrane structure that is elastically deformable due to the pressure caused by the fluid movement of the ascites discharged from the outlet 310, so that the outlet 310 can be selectively opened and closed.

[0033] That is, when the ascites is discharged through the outlet 310, the check valve 320 is deformed by the pressure caused by the fluid movement, opens the outlet, and discharges the ascites into the bladder (see FIG. 7(a)). When there is no ascites movement through the outlet 310, the check valve 320 is restored to its original shape by the pressure inside the bladder and the spring restoring force, closes the outlet 310, and prevents the fluid inside the bladder from flowing back into the main conduit portion 100 (see FIG. 7(b)).

[0034] The check valve 320 may be made of the same material as the bladder side anchoring part 300 or may be a separate type, and one side of the check valve 320 may be connected to a part adjacent to the outlet 310 in various ways (see FIG. 6(a)).

[0035] The check valve 320 is integral with the bladder side anchoring portion 300 on one side, and is provided in a portion adjacent to the outlet 310 (see FIG. 6(b)).

[0036] The internal drainage pipe for draining ascites according to the first embodiment of the present invention has been described above. In the following, an internal drainage pipe for draining ascites according to a second embodiment of the present invention will be described with reference to FIG.

[0037] FIG. 8 is a partial cross-sectional view for explaining a check valve employed in an internal drainage pipe for draining ascites according to a second embodiment of the present invention.

[0038] As shown in FIG. 8, the internal drainage tube for draining ascites according to the second embodiment of the present invention is similar in most respects to the above-described embodiment, but differs in the structure of the check valve 320.

[0039] That is, the check valve 320 used in this embodiment has a relatively thicker thickness toward one side connected to the portion adjacent to the outlet 310, thereby increasing the shape restoration force due to elastic deformation for closing the outlet 310 when the discharge of the ascites is completed.

[0040] Having described the second embodiment of the present invention, an internal drainage tube for draining ascites according to a third embodiment of the present invention will now be described with reference to Figs.

[0041] FIG. 9 is an oblique view for explaining an internal drainage tube for draining ascites according to a third embodiment of the present invention, and FIG. 10 is a partial cross-sectional view for explaining a check valve and an insertion groove adopted in the third embodiment of the present invention.

[0042] As shown in the drawings, the internal drainage tube for draining ascites according to the third embodiment of the present invention has most of the configuration similar to the above-mentioned embodiment, but there are differences in the structure of the bladder side anchoring portion 300 and the structure of the check valve 320.

[0043] That is, it is preferable that the bladder side anchoring part 300 employed in this embodiment further includes an insertion groove 330. The insertion groove 330 of the bladder side anchoring part 300 is formed in a portion adjacent to the outlet 310, and supports the frame part of the check valve 320 by inserting it therein, thereby preventing the check valve 320 from being pushed toward the outlet 310 due to the pressure inside the bladder.

[0044] Here, the check valve 320 is connected to the bladder side anchoring part 300 with one side inserted into the insertion groove 330, and when the frame part (frame part including the one side) of the check valve 320 is inserted into the insertion groove 330 to close the outlet 310, the outer surface of the bladder side anchoring part 300 is formed without any part protruding from the bladder side anchoring part 300.

[0045] The check valve 320 of this embodiment also includes a sealing protrusion 321. The sealing protrusion 321 of the check valve 320 is formed in a convex shape at a position facing the outlet 310 and has a size corresponding to the outlet, and is fitted into the outlet 310 when the outlet 310 is closed, thereby suppressing the backflow of fluid on the bladder side into the outlet 310 and increasing the closing force against the outlet.

[0046] The third embodiment of the present invention has been described above. In the following, an internal drainage tube for draining ascites according to a fourth embodiment of the present invention will be described with reference to FIG.

[0047] 11 is a view for explaining an internal drainage tube for draining ascites according to a fourth embodiment of the present invention. As shown in FIG. 11, most of the configuration of this embodiment is similar to the above-mentioned embodiment, but there is a difference in the structure of the abdominal cavity anchoring part 200.

[0048] That is, it is preferable that the abdominal cavity side anchoring portion 200 employed in this embodiment further includes an abdominal cavity side check valve 220 disposed inside where the ascites moves and provided in a portion adjacent to the inlet 210.

[0049] The abdominal cavity check valve 220 has one side connected to a portion adjacent to the inlet 210 and is formed in the form of an elastically deformable membrane, so that when ascites flows into the inlet 210, it is elastically deformed, thereby opening the inlet 210.

[0050] In addition, when the inflow of ascites into the inlet 210 is completed, the abdominal cavity side check valve 220 restores its shape, and by closing the inlet 210 inside the abdominal cavity side anchoring section 200, it has the effect of preventing fluid on the bladder side and fluid remaining on the main conduit section 100 side from flowing back into the abdominal cavity through the inlet 210.

[0051] The abdominal cavity side check valve 220 is provided with the sealing protrusion adopted in the third embodiment at a position corresponding to the inlet 210, thereby increasing the closing force of the inlet. In addition, the abdominal cavity side anchoring part 200 is formed in a portion adjacent to the inlet 210 and includes an insertion groove into which the frame part of the abdominal cavity side check valve 220 is inserted, thereby increasing the adhesive force between the abdominal cavity side check valve and the abdominal cavity side anchoring part 200.

[0052] While the above describes preferred embodiments of the present invention, the present invention is not limited to the above embodiments, and is defined by the claims. It is obvious that various modifications and developments are possible in the technical field to which the present invention pertains.

Claims

1. A main conduit portion having a tubular shape that passes through the bladder wall, which is a criterion for dividing the area between the abdominal cavity and the bladder, and has both ends located in the abdominal cavity and the bladder, respectively, so that a flow path through which a fluid can freely move is formed inside the main conduit portion; an abdominal cavity side anchoring part that is extended from one end of the main conduit part and is located on the abdominal cavity side, passes through the inside of the laparoscope while being arranged long along the same axis as the main conduit part, approaches the bladder wall, and when it is removed from the inside of the laparoscope after approaching, is rolled up into a ring shape by elastic restoring force, and has an inlet through which ascites in the abdominal cavity flows in; a bladder-side anchoring portion extending from the other end of the main conduit portion and positioned on the bladder side, passing through the inside of the laparoscope while being arranged long along the same axis as the main conduit portion and approaching the bladder wall, and being wound up in a ring shape by an elastic restoring force and positioned in the bladder when it is removed from the inside of the laparoscope after approaching, and having an outlet through which the ascites is discharged, and a check valve provided for selectively opening and closing the outlet; The check valve is in the form of a membrane having one side connected to a portion adjacent to the outlet so as to selectively open and close the outlet, An internal drainage tube for draining ascites, which is a check valve having an elastic membrane structure that is elastically deformable due to pressure caused by the fluid movement of the ascites discharged to the drain port.

2. 2. The internal drainage pipe for draining ascites according to claim 1, wherein the check valve has a relatively thicker thickness toward one side connected to a portion adjacent to the outlet so that a shape restoring force due to elastic deformation for closing the outlet can be increased when the drainage of the ascites is completed.

3. 2. The internal drainage tube for draining ascites according to claim 1, wherein the check valve is formed in a convex shape at a position opposite the outlet so as to prevent the bladder side fluid from flowing back into the outlet and to increase the closing force for the outlet, and includes a sealing protrusion that is fitted into the outlet when the outlet is closed.

4. The internal drainage tube for draining ascites as described in claim 1, characterized in that the bladder side anchoring portion includes an insertion groove into which a frame portion of the check valve is inserted so as to increase the adhesive force with the check valve when the check valve closes the outlet.

5. A main conduit portion having a tubular shape that passes through the bladder wall, which is the criterion for dividing the area between the abdominal cavity and the bladder, and has both ends located in the abdominal cavity and the bladder, respectively, so that a flow path through which fluid can move freely can be formed on the inside. an abdominal cavity side anchoring part that is extended from one end of the main conduit part and is located on the abdominal cavity side, passes through the inside of the laparoscope while being arranged long along the same axis as the main conduit part, approaches the bladder wall, and when it is removed from the inside of the laparoscope after approaching, is rolled up into a ring shape by elastic restoring force, and has an inlet through which ascites in the abdominal cavity flows in; a bladder-side anchoring portion extending from the other end of the main conduit portion and positioned on the bladder side, passing through the inside of the laparoscope while being arranged long along the same axis as the main conduit portion and approaching the bladder wall, and being wound up in a ring shape by an elastic restoring force and positioned in the bladder when it is removed from the inside of the laparoscope after approaching, and having an outlet through which the ascites is discharged, and a check valve provided for selectively opening and closing the outlet; The abdominal cavity side anchoring portion is in the form of a membrane having one side connected to a portion adjacent to the inlet inside the abdominal cavity side anchoring portion through which ascites moves, so as to prevent fluid from flowing into the abdominal cavity through the inlet, and further comprises an abdominal cavity side check valve that is elastically deformed by pressure caused by the fluid movement of the ascites flowing into the inlet, and selectively opens and closes the inlet.

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