Internal drainage tube for ascitic fluid drainage

Abstract

The present invention relates to an improved internal drainage tube for ascites drainage, which makes it possible to discharge ascites in the abdominal cavity through urine through the bladder and greatly ensures the fixing force to the bladder wall as a reference that distinguishes the area between the abdominal cavity and the bladder.

Description

Technical Field

[0001] This invention relates to an internal drainage tube for ascites drainage, and more specifically to an improved internal drainage tube for ascites drainage that allows ascites in the abdominal cavity to be drained through the bladder via urine and greatly ensures the fixation force on the bladder wall, which serves as a reference for distinguishing the area between the abdominal cavity and the bladder. Background Technology

[0002] Ascites, a symptom of fluid accumulation in the peritoneal cavity, occurs in liver cirrhosis or peritoneal seeding diseases (peritoneal carcinomatosis: cases where cancer metastasizes to the peritoneum from sources such as stomach, colorectal, pancreatic, or ovarian cancer). Ascites symptoms worsen, patients experience discomfort, pain, and limited mobility due to abdominal distension.

[0003] In this situation, such as Figure 1 and Figure 2 As shown, to achieve symptom improvement, repeated paracentesis (a procedure involving repeatedly puncturing the abdomen with a needle to drain ascites) is necessary. However, the improvement is short-lived, so patients undergo paracentesis every other day (each procedure yields approximately 2-3 liters of ascites). Because this procedure requires puncturing the abdomen with a thick needle down to the peritoneum, it causes pain and other discomfort. With repeated paracentesis, complications such as intestinal perforation due to intestinal puncture or surgical bleeding and infection can occur.

[0004] Although there is also a procedure that involves inserting a catheter through the intestinal wall (percutaneous catheter drainage, PCD), this method involves placing the catheter outside the abdominal wall, which is difficult to maintain for several days. Over time, the risk of infection increases, and because it is an external drainage procedure, it restricts the patient's movement and causes many inconveniences in daily life.

[0005] As mentioned above, conventional catheters used for ascites drainage are difficult to fix in the human body and cause pain and complications due to repeated surgeries, resulting in patient discomfort.

[0006] As a prior art, there is a registered patent gazette with registration number 10-1671612. Summary of the Invention

[0007] Technical issues

[0008] This invention is proposed to solve the problems mentioned above. The purpose of this invention is to provide an internal drainage tube for ascites drainage, which can smoothly drain ascites from the abdominal cavity through the bladder and prevent fluid from the bladder from flowing back into the abdominal cavity. It can increase the fixation force on the body, prevent pain and complications caused by repeated surgeries for ascites drainage, and minimize patient discomfort, thereby enabling the patient to move or live a normal life.

[0009] The problems solved by the present invention are not limited to those mentioned above, and other problems not mentioned can be clearly understood by those skilled in the art from the following description.

[0010] Problem Solution

[0011] An internal drainage tube for ascites drainage according to the invention for achieving the aforementioned purpose comprises: a main tube portion, formed in a tube shape by passing through the bladder wall, which serves as a reference for separating the region between the abdominal cavity and the bladder, and having its two ends located in the abdominal cavity and the bladder, respectively, to form a flow path for fluid movement internally; and an abdominal-side anchoring portion, formed extending from one end of the main tube portion and located on the abdominal side, arranged in a manner extending along the same axis as the main tube portion, passing through the interior of the laparoscope and approaching the bladder wall, and then disengaging from the interior of the laparoscope after approaching. In the detached state, the laparoscope uses elastic restoring force to curl into a ring shape, forming an inlet for ascites present in the abdominal cavity to flow in; and a bladder-side anchoring portion, extending from the other end of the main tube and located on the bladder side, is arranged to extend along the same axis as the main tube, passing through the interior of the laparoscope and approaching the bladder wall. After approaching, in the detached state from the interior of the laparoscope, the laparoscope uses elastic restoring force to curl into a ring shape and is located in the bladder, forming an outlet for the ascites to drain out, and is equipped with a check valve that selectively opens and closes the outlet.

[0012] The check valve is formed in the form of a membrane connected on one side to a portion adjacent to the outlet so that the outlet can be selectively opened and closed, and may be a check valve with an elastic membrane structure that can be elastically deformed according to the pressure caused by the fluid movement of ascites discharged into the outlet.

[0013] The check valve is preferably thicker towards the side connected to the portion adjacent to the outlet, so as to increase the shape-restoring force from the elastic deformation used to close the outlet when the ascites is discharged.

[0014] The check valve may include a sealing protrusion formed in a convex shape at a position opposite to the outlet and embedded in the outlet when the outlet is closed, so as to inhibit the backflow of fluid from the bladder side into the outlet and increase the closing force on the outlet.

[0015] The bladder-side anchoring portion is preferably formed by including an insertion groove into which the edge portion of the check valve is inserted, so as to increase the friction with the check valve when the outlet is closed by the check valve.

[0016] The abdominal side anchoring portion may also include an abdominal side check valve, which is formed in the form of a membrane inside the abdominal side anchoring portion for ascites movement, with one side connected to a portion adjacent to the inlet, so as to inhibit fluid from flowing into the abdominal cavity through the inlet, and elastically deforms according to the pressure caused by the fluid movement of ascites flowing into the inlet, to selectively open and close the inlet.

[0017] The effects of the invention

[0018] The internal drainage tube for ascites drainage according to the present invention, having the configuration described above, forms a flow path on the inner side of the main tube portion, with the two sides of the main tube portion respectively arranged in the abdominal cavity and bladder. The abdominal side anchoring portion is located on the abdominal side and is rolled into a ring shape by elastic recovery force, having an inlet for the inflow of ascites. The bladder side anchoring portion, when arranged on the bladder side, is rolled into a ring shape by elastic recovery force, forming an outlet for the drainage of ascites, and has a check valve that selectively opens and closes this outlet. This has the following effects: it can smoothly drain ascites from the abdominal cavity through the bladder and prevent fluid inside the bladder from flowing back into the abdominal cavity, increase the fixation force on the body, prevent pain and complications caused by repeated surgeries for ascites drainage, and minimize the inconvenience to the patient, thus enabling them to move or live their lives.

[0019] The effects of the present invention are not limited to those mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the following description. Attached Figure Description

[0020] Figure 1 and Figure 2 This diagram illustrates the surgical procedure for draining ascites using conventional techniques.

[0021] Figure 3 This is a diagram illustrating the surgical environment of an internal drainage tube for ascites drainage according to a first embodiment of the present invention.

[0022] Figure 4 This is a perspective view of the first embodiment of the present invention.

[0023] Figure 5 This is a diagram showing the state of surgery according to the first embodiment of the present invention.

[0024] Figure 6 yes Figure 5 The diagram is a VI-VI cross-sectional view and is used to illustrate a check valve located adjacent to the outlet.

[0025] Figure 7 This is a diagram illustrating the state of the check valve opening and closing the discharge port as used in the first embodiment of the present invention.

[0026] Figure 8 This is a partial cross-sectional view illustrating the check valve used in the internal drainage tube for ascites drainage according to the second embodiment of the present invention.

[0027] Figure 9 This is a perspective view illustrating the internal drainage tube for ascites drainage according to a third embodiment of the present invention.

[0028] Figure 10 This is a partial cross-sectional view used to illustrate the check valve and insertion groove used in the third embodiment of the present invention.

[0029] Figure 11 This is a diagram illustrating an internal drainage tube for ascites drainage according to a fourth embodiment of the present invention. Detailed Implementation

[0030] The internal drainage tube for ascites drainage according to the first embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0031] Figure 3 This is a diagram illustrating the surgical environment of the internal drainage tube for ascites drainage according to the first embodiment of the present invention. Figure 4 This is a perspective view of the first embodiment of the present invention. Figure 5 This is a diagram showing the state of surgery according to the first embodiment of the present invention. Figure 6 yes Figure 5 The VI-VI cross-sectional view is used to illustrate the check valve installed adjacent to the discharge port. Figure 7 This is a diagram illustrating the state of the check valve opening and closing the discharge port as used in the first embodiment of the present invention.

[0032] As shown in these figures, the internal drainage tube for ascites drainage according to the first embodiment of the present invention is formed by including a main tube portion 100, an abdominal side anchoring portion 200, and a bladder side anchoring portion 300.

[0033] The main tube 100 is formed in a tube shape to create a flow path for fluid movement on the inside, through the bladder wall 10 which serves as a reference for distinguishing the region between the abdominal cavity B and the bladder A, with its two ends located in the abdominal cavity B and the bladder A, respectively.

[0034] After the main tube 100 detaches from the laparoscope, it is positioned within the bladder wall 10, thereby allowing the flow path to communicate between the abdominal cavity B and the bladder A. Therefore, ascites fluid within the abdominal cavity B flows into the flow path of the main tube 100 and then moves towards and is discharged from the bladder A.

[0035] One end of the main tube 100 is connected to the abdominal side anchoring portion 200 and located in the abdominal cavity, thereby allowing ascites generated inside the abdominal cavity to move to the other end of the main tube 100. On the other hand, the other end of the main tube 100 is connected to the bladder side anchoring portion 300 and located in the bladder, thereby allowing ascites moving along the flow path of the main tube to be drained through the bladder.

[0036] The main tube 100 is flexible and can be formed from a corrosion-resistant raw material, and the abdominal side anchoring part 200 and the bladder side anchoring part 300 can be formed as a single unit.

[0037] The abdominal side anchoring portion 200 extends from one end of the main tube portion 100 and is located on the abdominal B side. It is arranged to extend along the same axis as the main tube portion 100, pass through the interior of the laparoscope 20 and approach the bladder wall 10. After approaching, it is detached from the interior of the laparoscope 20 and curls into a loop shape (Pigtail type) using elastic restoring force.

[0038] In addition, an inlet 210 for ascites is formed by the abdominal side anchoring portion 200, which is connected to the flow path of the main tube portion, so that ascites inside the abdominal cavity can flow into the inlet 210 and move along this flow path to the bladder side anchoring portion 300.

[0039] When the abdominal side anchoring part 200 is located in the abdominal cavity, it is rolled into a ring shape, thereby preventing the abdominal side anchoring part 200 from falling out of the abdominal cavity via the bladder wall 10 and preventing the main tube part 100 from moving arbitrarily in the bladder wall.

[0040] The bladder-side anchoring portion 300 extends from the other end of the main tube portion 100 and is located on the side of the bladder A. It is arranged to extend along the same axis as the main tube portion 100, passing through the interior of the laparoscope 20 and approaching the bladder wall 10. After approaching, it is detached from the interior of the laparoscope 20 and is rolled into a ring shape by elastic recovery force and located in the bladder A. It has an outlet 310 for draining the ascites.

[0041] Furthermore, the bladder-side anchoring portion 300 is configured with a check valve 320 that selectively opens and closes the outlet 310 at a position adjacent to the outlet 310, thereby allowing the ascites to be drained into the bladder A, and preventing the fluid inside the bladder from flowing back into the main tube portion 100 after the ascites is drained.

[0042] The bladder-side anchoring portion 300 is rolled into a ring shape when it is located in the bladder A, thereby preventing the bladder-side anchoring portion 300 from moving to the abdominal cavity side via the bladder wall 10, and preventing the main tube portion 100 from moving arbitrarily in the bladder wall 10.

[0043] The internal drainage tube for ascites drainage according to the first embodiment of the present invention, having this configuration, forms a flow path inside the main tube portion 100, with the two sides of the main tube portion 100 respectively arranged in the abdominal cavity B and the bladder A. The abdominal cavity side anchoring portion 200 is located on the abdominal cavity B side and is rolled into a ring shape by elastic recovery force, having an inlet 210 for the inflow of ascites. The bladder side anchoring portion 300, when arranged on the bladder side, is rolled into a ring shape by elastic recovery force, forming an outlet 310 for the drainage of ascites, and has a check valve 320 that selectively opens and closes this outlet 310. This has the following effects: it can smoothly drain ascites from the abdominal cavity through the bladder and prevent fluid inside the bladder from flowing back into the abdominal cavity, increase the fixation force on the body, prevent pain and complications caused by repeated surgeries for ascites drainage, and minimize patient discomfort so that the patient can move or live a normal life.

[0044] On the other hand, the check valve 320 of this embodiment is formed in the form of a membrane connected to a portion adjacent to the outlet 310 on one side, and is formed as an elastic membrane structure that can be elastically deformed according to the pressure caused by the fluid movement of the ascites discharged to the outlet 310, thereby selectively opening and closing the outlet 310.

[0045] That is, when the ascites is discharged through the outlet 310 by the check valve 320, the outlet is opened by the pressure caused by the movement of the fluid, allowing the ascites to be discharged into the bladder (see reference). Figure 7(a)). On the other hand, when the ascites fluid passing through the outlet 310 does not move, the check valve 320 uses the pressure inside the bladder and the elastic restoring force to restore its shape and close the outlet 310, thereby preventing the fluid inside the bladder from flowing back into the main tube section 100 (see reference). Figure 7 (b)

[0046] The check valve 320 may be formed from the same raw material as the bladder-side anchoring portion 300, in a split type, and may be connected to the portion adjacent to the discharge port 310 in various ways (see reference). Figure 6 (a)).

[0047] On the other hand, the check valve 320 can be fitted in the portion adjacent to the outlet 310 (see reference) by making the bladder-side anchoring portion 300 integral with the side. Figure 6 (b)

[0048] The internal drainage tube for ascites drainage according to the first embodiment of the present invention has been described above. The following will refer to... Figure 8 An internal drainage tube for ascites drainage according to a second embodiment of the present invention will be described.

[0049] Figure 8 This is a partial cross-sectional view illustrating the check valve used in the internal drainage tube for ascites drainage according to the second embodiment of the present invention.

[0050] like Figure 8 As shown, the internal drainage tube for ascites drainage according to the second embodiment of the present invention is largely similar in structure to the embodiments described above, but there is a difference in the structure of the check valve 320.

[0051] That is, the check valve 320 used in this embodiment is relatively thicker towards the side connected to the portion adjacent to the outlet 310, thereby increasing the shape recovery force brought about by the elastic deformation used to close the outlet 310 when the ascites is discharged.

[0052] The second embodiment of the present invention has been described above. The following will refer to... Figures 9 to 10 An internal drainage tube for ascites drainage according to a third embodiment of the present invention will be described.

[0053] Figure 9 This is a perspective view illustrating an internal drainage tube for ascites drainage according to a third embodiment of the present invention, and Figure 10 This is a partial cross-sectional view used to illustrate the check valve and insertion groove used in the third embodiment of the present invention.

[0054] As shown in these figures, the internal drainage tube for ascites drainage according to the third embodiment of the present invention is largely similar in structure to the embodiments described above, but there are differences in the structure of the bladder-side anchoring portion 300 and the check valve 320.

[0055] That is, in this embodiment, the bladder-side anchoring portion 300 preferably also includes an insertion groove 330. The insertion groove 330 of the bladder-side anchoring portion 300 is formed at the portion adjacent to the outlet 310, and the edge portion of the check valve 320 is inserted and supported, thereby preventing the check valve 320 from being pushed into the outlet 310 side by the pressure inside the bladder.

[0056] Here, the check valve 320 is connected to the bladder-side anchoring portion 300 with one side inserted into the insertion groove 330, and the edge portion of the check valve 320 (including the edge portion on the one side) is inserted into the insertion groove 330, so that when the outlet 310 is closed, the outer surface of the bladder-side anchoring portion 300 is formed in such a way that it does not have a portion protruding from the bladder-side anchoring portion 300.

[0057] Additionally, the check valve 320 of this embodiment may include a sealing protrusion 321. The sealing protrusion 321 of the check valve 320 is formed by having a size corresponding to the discharge port 310 at a position opposite to the discharge port 310 and being formed in a protruding shape. When the discharge port 310 is closed, it is embedded in the discharge port 310, thereby having the effect of inhibiting the backflow of fluid from the bladder side into the discharge port 310 and increasing the closing force on the discharge port.

[0058] The third embodiment of the present invention has been described above. The following will refer to... Figure 11 An internal drainage tube for ascites drainage according to a fourth embodiment of the present invention will be described.

[0059] Figure 11 This is a diagram illustrating an internal drainage tube for ascites drainage according to a fourth embodiment of the present invention. Figure 11 As shown, this embodiment is largely similar to the embodiments described above, but there are differences in the structure of the abdominal side anchoring part 200.

[0060] That is, the abdominal side anchoring part 200 used in this embodiment is preferably formed by further including an abdominal side check valve 220, which is arranged inside for the movement of ascites and is provided in the part adjacent to the inlet 210.

[0061] The abdominal side check valve 220 is formed by a membrane that is elastically deformable and connected on one side to the portion adjacent to the inlet 210, thereby elastically deforming the inlet 210 when ascites flows into it, thus opening the inlet 210.

[0062] Conversely, the abdominal side check valve 220 restores its shape when the ascites flows into the inlet 210 and closes the inlet 210 inside the abdominal side anchoring portion 200, thereby preventing fluid from the bladder side or fluid remaining on the main tube portion 100 side from flowing backward into the abdominal cavity through the inlet 210.

[0063] The abdominal side check valve 220 increases the closing force of the inlet by configuring the sealing protrusion used in the third embodiment described above at a position corresponding to the inlet 210. Furthermore, the abdominal side anchoring portion 200 is formed in the portion adjacent to the inlet 210 and includes an insertion groove for inserting the edge portion of the abdominal side check valve 220, thereby increasing the friction between the abdominal side check valve and the abdominal side anchoring portion 200.

[0064] The preferred embodiments of the present invention have been described above. However, it is self-evident that the present invention is not limited to the embodiments described above, but should be defined by the content of the claims, and various modifications and developments can be made in the technical field to which the present invention pertains.

Claims

1. An internal drainage tube for ascites drainage, characterized in that, include: The main tube, which is formed in a tube shape by the bladder wall, which serves as a reference for distinguishing the region between the abdominal cavity and the bladder, and with its two ends located in the abdominal cavity and the bladder respectively, is able to form a flow path for fluid movement on the inside. An abdominal side anchoring portion extends from one end of the main tube and is located on the abdominal side. It passes through the interior of the laparoscope and approaches the bladder wall in a state of extending along the same axis as the main tube. After approaching, it curls into a ring shape by elastic recovery force in a state of disengagement from the interior of the laparoscope, forming an inlet for ascites present in the abdominal cavity to flow in. as well as A bladder-side anchoring portion extends from the other end of the main tube and is located on the bladder side. It extends along the same axis as the main tube, passes through the interior of the laparoscope, and approaches the bladder wall. After approaching, in a state of disengagement from the laparoscope, it elastically curls into a ring shape and is located in the bladder, forming an outlet for draining ascites. It is equipped with a check valve that selectively opens and closes the outlet. The check valve is formed in the form of a membrane connected on one side to a portion adjacent to the outlet, so as to selectively open and close the outlet. It is a check valve with an elastic membrane structure that can elastically deform according to the pressure caused by the fluid movement of ascites fluid discharged into the outlet. The thickness of the check valve gradually increases towards the side connected to the portion adjacent to the outlet, in order to increase the shape-restoring force due to elastic deformation closing the outlet when the ascites discharge is completed.

2. The internal drainage tube for ascites drainage according to claim 1, characterized in that, The check valve includes a sealing protrusion. The sealing protrusion is formed in a protruding form at a position opposite to the outlet and is embedded in the outlet when the outlet is closed, so as to inhibit the backflow of fluid from the bladder side into the outlet and increase the closing force on the outlet.

3. The internal drainage tube for ascites drainage according to claim 1, characterized in that, The bladder-side anchoring portion includes an insertion groove. The insertion slot is for inserting the edge portion of the check valve to increase the friction with the check valve when the outlet is closed.

4. The internal drainage tube for ascites drainage according to claim 1, characterized in that, The abdominal side anchoring part also includes an abdominal side check valve. The abdominal side check valve is formed in the form of a membrane inside the abdominal side anchoring portion for the movement of the ascites, with one side connected to the inlet. This allows it to inhibit fluid from flowing into the abdominal cavity through the inlet and to elastically deform according to the pressure caused by the fluid movement of the ascites flowing into the inlet, thereby selectively opening and closing the inlet.

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