Drainage pipe guide device

JP7866283B2Active Publication Date: 2026-05-27JSR MEDICAL CO LTD +1
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
JSR MEDICAL CO LTD
Filing Date
2022-10-21
Publication Date
2026-05-27

AI Technical Summary

Technical Problem

Existing drainage tubes often deviate from their fixed position due to intestinal movement, leading to ineffective discharge of bodily fluids and secretions, and current methods like suturing to the peritoneum do not provide a significant solution.

Method used

A drainage tube guide device with a head portion, guide tube, and peeling portion that allows the tube to be guided extraperitoneally without damaging tissues, using a straight guide tube and a blunt protrusion to dissect the preperitoneal fat layer.

Benefits of technology

Enables the drainage tube to remain in position, minimizing movement and ensuring effective fluid drainage by guiding it through an extraperitoneal route, reducing tissue damage and improving therapeutic outcomes.

✦ Generated by Eureka AI based on patent content.

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Abstract

A drainage tube guiding device is provided, which includes a head portion extending in one direction, a guide tube having a hollow formed therein and extending downward from the head portion, and a peeling portion communicating with the hollow of the guide tube and being drawn in while peeling tissue forward.
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Description

Technical Field

[0001] The present invention relates to a drainage tube guiding device.

Background Art

[0002] A drainage tube is inserted into the human body for discharging body fluids after surgery and observing bleeding, by inserting a drainage tube into the surgical site to observe the discharge of secretions from the wound, secretions accumulated in the body, and secretions and bleeding after surgery and treatment.

[0003] At this time, the drainage tube is fixed at the position desired by the surgeon. However, the drainage tube often deviates from the fixed position within a few days after surgery due to the movement (peristaltic movement) of the intestinal tract that occupies most of the abdominal cavity space. As a result, it becomes impossible to discharge unnecessary body fluids, blood, or secretions, which are the original purpose of the drainage tube, and the function is substantially lost. As a method currently being carried out to solve this problem, there is a method of fixing the drainage tube to the peritoneum in the abdominal cavity using sutures, but there is no significant difference in the results with this method either.

[0004] Recently, in order to easily and effectively fix the drainage tube, a method has been tried to move and fix the drainage tube to the desired position through a route outside the abdominal cavity, that is, extraperitoneal, rather than inside the abdominal cavity. It has been confirmed that this method has an improved effect compared to the conventional method in which the drainage tube is directly inserted into the abdominal cavity.

[0005] The abdominal cavity is composed of the abdominal wall. The abdominal wall is large and consists of skin, subcutaneous fat layer, muscle layer surrounded by fascia in the front and back, fascia, preperitoneal fat layer, and peritoneum. Since the drainage tube itself is made of a soft material, an auxiliary device is required to move the drainage tube to the desired position through the extraperitoneal route. The layer with the least damage and the easiest to move among the abdominal wall component layers is the preperitoneal fat tissue plane.

[0006] The preperitoneal fat tissue plane is a physically weak tissue layer and can be easily dissected. Therefore, among the possible extraperitoneal routes, passing through the preperitoneal fat tissue plane is the easiest and safest way to reach the target location.

[0007] However, inserting drainage tubes that pass outside the peritoneum is impossible with current technology, and the need for a device that can guide or assist for this purpose has been pointed out, but none of the conventional drainage tubes and related devices meet this requirement. [Overview of the project] [Problems that the invention aims to solve]

[0008] The technical problem that this invention aims to solve is to provide a drainage tube guide device that can guide the drainage tube to a target location while peeling away the extraperitoneal fat layer without damaging tissues and organs. [Means for solving the problem]

[0009] According to one embodiment, a drainage pipe guide device is provided. The drainage pipe guide device includes a head portion extending to one side, a guide tube having a hollow structure and extending downward from the head portion, and a peeling portion communicating with the hollow of the guide tube and being pulled in while peeling tissue forward.

[0010] The head portion may include an inlet that communicates with the hollow of the guide tube so that the drain pipe is inserted into the guide tube at its upper surface.

[0011] The head portion may include an identification portion that protrudes forward.

[0012] The head portion may be characterized by being one of the following: a bar extending laterally, a spherical shape with a curved surface, or a polyhedron with polygonal sides.

[0013] The length of the guide tube may be characterized by being between 20 cm and 40 cm.

[0014] The guide tube may be characterized by having a straight shape.

[0015] The detachment portion may include a fixed portion connected to the end of the guide tube and a protruding portion formed to protrude in the direction of retraction.

[0016] The fixing portion may be characterized by having a hollow structure, into which the end of the guide tube is inserted.

[0017] The aforementioned protrusion may be characterized by having a rounded shape with a blunt tip.

[0018] The peeling portion may further include an extraction port that communicates with the hollow of the guide tube and from which the drainage pipe inserted into the guide tube is removed.

[0019] The extraction port may be characterized by having either a circular or elliptical shape.

[0020] The peeling portion may further include an inclined portion that extends upward from the fixing portion.

[0021] The inclined portion may be characterized by being curved at an angle of 25 degrees or more and 55 degrees or less from the fixed portion.

[0022] The length of the inclined portion may be characterized as being between 1 cm and 5 cm. [Effects of the Invention]

[0023] It is possible to guide the drainage tube to the target location by dissecting the extraperitoneal fat layer without damaging tissues or organs.

[0024] By enabling the insertion and surgery of the drainage tube through an extraperitoneal route, the drainage tube can be prevented from shifting due to intestinal movement or body movement after surgery, and drainage treatment can be performed for the desired period.

Brief Description of the Drawings

[0025] [Figure 1] It is a perspective view of a drainage tube guiding device according to an embodiment. [Figure 2] It is a front view of a drainage tube guiding device according to an embodiment. [Figure 3] It is a side view of a drainage tube guiding device according to an embodiment. [Figure 4] It is a diagram for explaining the head portion of a drainage tube guiding device according to an embodiment. [Figure 5] It is a diagram for explaining the head portion of a drainage tube guiding device according to an embodiment. [Figure 6] It is a diagram for explaining the peeling portion of another drainage tube guiding device according to an embodiment. [Figure 7] It is a diagram for explaining the peeling portion of another drainage tube guiding device according to an embodiment.

Modes for Carrying Out the Invention

[0026] Hereinafter, referring to the accompanying drawings, embodiments of the present invention will be described in detail so that those having ordinary knowledge in the technical field to which the present invention belongs can easily implement them. However, the present invention can be realized in various different forms and is not limited to the embodiments described here. Also, in the drawings, parts not related to the description are omitted for clarity of the present invention, and similar reference numerals are given to similar parts throughout the specification.

[0027] Throughout the specification, when a part includes a certain component, this means that, unless otherwise stated, other components are not excluded and other components may be further included.

[0028] While the present invention can be modified in various ways and may have various embodiments, specific embodiments are illustrated and described in detail in the drawings. This should be understood not as an attempt to limit the present invention to specific embodiments, but rather as corresponding to any one of the modifications, equivalents, and substitutes that fall within the concept and technical scope of the present invention for connecting and / or fixing structures extending in different directions.

[0029] The terms used herein are for illustrative purposes only to describe specific embodiments and are not intended to limit the invention. A singular expression includes a plural expression unless the context clearly indicates otherwise.

[0030] Furthermore, in explaining the present invention, if it is determined that a specific explanation of related prior art would unnecessarily obscure the gist of the present invention, such detailed explanation will be omitted.

[0031] Figure 1 is a perspective view of a drain pipe guide device according to one embodiment. Figure 2 is a front view of a drain pipe guide device according to one embodiment. Figure 3 is a side view of a drain pipe guide device according to one embodiment. Figures 4 and 5 are diagrams illustrating the head portion of a drain pipe guide device according to one embodiment. Figures 6 and 7 are diagrams illustrating the peeling portion of another drain pipe guide device according to one embodiment.

[0032] Referring to Figures 1 to 5, another drainage pipe guide device according to one embodiment includes a head portion 100, a guide tube 200, and a peeling portion 300.

[0033] In one embodiment, the head portion 100 may be formed in the shape of a bar extending in both directions, and may include an inlet 111 on its upper surface into which a drainage tube is drawn.

[0034] In one embodiment, the inlet 111 may be formed to communicate with the hollow of the guide pipe 200.

[0035] The handle portion 112 of the head portion 100 can be deformed into various shapes in one embodiment. As shown in the figure, it may have a bar shape or a spherical shape consisting of curved surfaces extending in both directions, or it may be a polyhedron with six or more faces.

[0036] In one embodiment, the handle portion 112 may be a rod-shaped or bar-shaped structure extending in both directions to serve as a handle, and may further include a plurality of grip grooves (not shown) that are spaced apart from each other and facing inward for the user's grip.

[0037] The grip grooves (not shown) may be formed as a series of grooves that are recessed to conform to the shape of the fingers, providing a comfortable grip when the user holds the handle portion 112 in their hand.

[0038] In one embodiment, the head portion 100 may include an identification portion 113 that protrudes forward. The protruding direction of the identification portion 113 and the protruding direction of the dissection portion 300 may coincide, thereby preventing the dissection portion 300 from being retracted in the opposite direction to the direction of advancement when retracted into the abdominal cavity.

[0039] In one embodiment, the head portion 100 may be joined to one end 1 of the guide tube 200 by welding.

[0040] The abdominal cavity is composed of the abdominal wall. The abdominal wall consists of the skin, subcutaneous fat layer, muscular layer surrounded by fascia on the front and back, preperitoneal fat layer, and peritoneum.

[0041] In one embodiment, the guide tube 200 may be retracted along the abdominal wall.

[0042] In one embodiment, the guide tube 200 may be formed in a hollow shape that communicates with the inlet 111, and may guide the drain pipe that is drawn in through the inlet 111.

[0043] In one embodiment, the guide tube 200 may extend downward from the lower surface of the head portion 100.

[0044] In one embodiment, the guide tube 200 may extend downward in a straight line, as shown in the figure.

[0045] The vertical axis of the abdominal cavity is approximately 30-50 cm, the horizontal axis is approximately 20-30 cm, and the cross-sectional radius of the abdominal cavity is approximately 10-20 cm, although this may vary depending on body type.

[0046] The longest axis of the abdominal cavity, from the diaphragm above the liver to the end of the rectum (levator ani muscle), is approximately 30-50 cm, depending on the size of an adult.

[0047] Taking into account the width and depth of the abdominal cavity in all adults, the guide tube 200 may, in one embodiment, have a length of 20 to 40 cm.

[0048] In one embodiment, the guide tube 200 may be made of a plastic material or a metal material having a rigid, non-bending hardness.

[0049] In one embodiment, the guide tube 200 may be made of a bendable, flexible plastic material.

[0050] In one embodiment, the peeling section 300 may communicate with the hollow of the guide tube 200 and be retracted while peeling off tissue in front of it. When it reaches the target point, a drainage pipe may be inserted through the inlet 111 of the head section 100.

[0051] In one embodiment, the peeling portion 300 may be joined to the other end 2 of the guide tube 200 by welding.

[0052] Referring to Figures 6 and 7, the peeling portion 300 may, in one embodiment, include a fixing portion 310, a protruding portion 320, an extraction port 330, and an inclined portion 340.

[0053] In one embodiment, the fixing portion 310 may be connected to the end of the guide tube 200.

[0054] In one embodiment, the fixing portion 310 may have a hollow structure, into which the end of the guide tube 200 is inserted and joined by welding.

[0055] In one embodiment, the protruding portion 320 may be formed to protrude in the direction of being retracted.

[0056] In one embodiment, the protrusion 320 may be formed to be inclined downward toward the end. That is, the protrusion 320 may have a rounded shape with a blunt tip.

[0057] In one embodiment, the protruding portion 320 may be formed in a wedge shape with a blunt tip.

[0058] The blunt-tipped projection 320 allows for the removal of the extraperitoneal fat layer without damaging tissues and organs, while reaching the target location.

[0059] In one embodiment, the extraction port 330 may communicate with the hollow of the guide tube 200, allowing the drainage pipe inserted into the guide tube 200 to be removed.

[0060] In one embodiment, the dispensing spout 330 may have either a circular or elliptical shape. In another embodiment, the dispensing spout 330 may have various shapes other than circular or elliptical.

[0061] If the extraction port 330 is oval-shaped, two drainage tubes can be extracted, which can shorten the surgical time and improve surgical efficiency.

[0062] In one embodiment, the length 6 (e.g., 12.5 mm) of the extraction port 330 may be longer than the width 5 (e.g., 6 mm).

[0063] In one embodiment, the inclined portion 340 may be formed to extend upward from the fixed portion 310.

[0064] In one embodiment, the inclined portion 340 may be curved at an angle 3 of 25 to 55 degrees or less from the fixed portion 310.

[0065] In one embodiment, the inclined portion 340 may have a length 4 of 1 to 5 cm.

[0066] While curved instruments have the advantage of being suitable for moving along the curves of the abdominal cavity, they can excessively dissipate the preperitoneal fat layer when changing direction to reach the target point, potentially causing unexpected bleeding. Furthermore, users may find curved instruments more difficult to use than straight ones because they are less accustomed to their operation.

[0067] In contrast, in the present invention, the dissection of the preperitoneal fat layer can be minimized when moving to the target point in the abdominal cavity via a straight guide tube 200 and a dissection section 300 formed to protrude in the direction of travel and inclined upward, thereby preventing bleeding due to excessive dissection.

[0068] The guide tube 200 of the present invention has a length of 20 to 40 cm, and the inclined portion 340 may have a length of 1 to 5 cm and a curved shape with an angle 3 of 25 to 55 degrees or less. Such numerical limitations are within a range that can be changed according to differences in body type in order to reach the target point furthest from the insertion site of the abdominal drainage tube, into which the drainage tube is generally inserted. By inserting the drainage tube outside the abdominal cavity, the movement of the drainage tube in response to intestinal peristalsis is minimized, allowing for effective drainage of bodily fluids from the abdominal cavity for a longer period of time. Therefore, the therapeutic effect can be improved compared to conventional methods, namely, procedures in which the drainage tube is inserted and fixed into the abdominal cavity through the abdominal cavity.

[0069] The present invention relates to a drainage tube guide device including a blunt projection 320, which allows for the insertion of a drainage tube through the retroperitoneal cavity to drain bodily fluids from the abdominal cavity by reaching the target point while peeling away the extraperitoneal fat layer without damaging tissues and organs. This makes the process of inserting and fixing a drainage tube into the abdominal cavity through the conventional surgical site easier and can improve therapeutic efficacy.

[0070] Although embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto. Various modifications and improvements made by those skilled in the art using the basic concepts of the present invention as defined in the following claims also fall within the scope of the present invention.

[0071] A person with ordinary skill in the art relating to this embodiment will understand that it can be realized in modified forms without departing from the essential characteristics described above. Therefore, the method of disclosure should be considered in an exemplary rather than restrictive manner. The scope of the present invention is shown in the claims rather than in the above description, and all differences within an equivalent scope should be construed as being included in the present invention.

Claims

1. A head portion extending to one side, A hollow is formed, and a guide tube extends downward from the head portion, It includes a peeling section that communicates with the hollow of the guide tube and is pulled in while peeling off tissue in front, The head portion is, A drain pipe guide device including an inlet that communicates with the hollow of the guide pipe so that the drain pipe is inserted into the guide pipe at its upper surface.

2. A head portion extending to one side, A hollow is formed, and a guide tube extends downward from the head portion, It includes a peeling section that communicates with the hollow of the guide tube and is pulled in while peeling off tissue in front, The peeled portion is, A fixing part is connected to the end of the guide tube, A protruding portion formed to protrude in the direction of being pulled in, A drain pipe guide device further includes an extraction port that communicates with the hollow of the guide pipe and from which a drain pipe inserted into the guide pipe is withdrawn.

3. The head portion is, A drain pipe guide device according to claim 1 or 2, comprising an identification portion that protrudes forward.

4. The head portion is, The drain pipe guide device according to claim 1 or 2, characterized in that it is one of the following: a bar extending laterally, a spherical shape with a curved surface, or a polyhedron with polygons.

5. The drain pipe guide device according to claim 1 or 2, characterized in that the length of the guide pipe is 20 cm or more and 40 cm or less.

6. The drain pipe guide device according to claim 1 or 2, characterized in that the guide pipe is straight.

7. The aforementioned fixing part has a hollow structure. The drain pipe guide device according to claim 2, characterized in that the end of the guide pipe is inserted into the hollow of the fixed portion.

8. The aforementioned protrusion is The drain pipe guide device according to claim 2, characterized in that it has a rounded shape with a non-pointed tip.

9. The aforementioned outlet is, The drain pipe guide device according to claim 2, characterized in that it has either a circular or elliptical shape.

10. The peeled portion is, The drain pipe guide device according to claim 2, further comprising an inclined portion extending from the fixed portion so as to be inclined in a direction intersecting the longitudinal direction of the fixed portion.

11. The aforementioned inclined portion is The drain pipe guide device according to claim 10, characterized in that it is curved at an angle of 25 degrees or more and 55 degrees or less from the fixed portion.

12. The drain pipe guide device according to claim 10, characterized in that the length of the inclined portion is 1 cm or more and 5 cm or less.