Drain pipe guide device
The drainage tube guiding device facilitates the extraperitoneal insertion of drainage tubes, maintaining their position and ensuring effective fluid drainage by dissecting the preperitoneal fat layer without causing tissue damage.
Patent Information
- Application Number
- JP2024577285
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2022-07-04
- Filing Date
- 2022-10-21
- Publication Date
- 2025-07-10
- Estimated Expiration
- 2042-10-21
AI Technical Summary
Existing drainage tubes often deviate from their fixed position due to intestinal movement, leading to ineffective fluid and secretion discharge after surgery, and existing methods like suturing to the peritoneum fail to maintain their position effectively.
A drainage tube guiding device with a head portion, guide tube, and peeling portion that allows the tube to be inserted through the extraperitoneal route, dissecting the preperitoneal fat layer without damaging tissues, guiding the tube to the target point.
Enables the drainage tube to remain in place, effectively draining fluids by minimizing tissue damage and preventing movement, enhancing treatment efficacy.
Smart Images

Figure 2025521838000001_ABST
Abstract
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 to drain body fluids after surgery and observe 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 the discharge and bleeding of secretions 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 used 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 attempted to move and fix the drainage tube to the desired position through an extraperitoneal route outside the abdominal cavity, that is, outside the peritoneum, and it has been confirmed that there is 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 instrument is required to move the drainage tube to the desired position through the extraperitoneal route. Among the abdominal wall constituent layers, the layer with the least damage and the easiest to move is the preperitoneal fat tissue plane.
[0006] The preperitoneal fat tissue plane can be easily dissected because it is a physically weak tissue layer. Therefore, passing through the preperitoneal fat tissue plane among the possible extraperitoneal routes is the easiest and safest way to reach the target point.
[0007] However, the insertion of a drainage tube through such an extraperitoneal route is currently impossible with existing techniques, and the need for a device that can guide or assist for such a purpose has been pointed out. Among conventional drainage tubes and their related devices, none can meet this requirement.
Summary of the Invention
Problems to be Solved by the Invention
[0008] The technical problem to be achieved by the present invention is to provide a drainage tube guiding device that can reach the target point while dissecting the extraperitoneal fat layer without damaging tissues and organs and guide the drainage tube.
Means for Solving the Problems
[0009] According to one embodiment, a drainage tube guiding device is provided. The drainage tube guiding device 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 dissection portion communicating with the hollow of the guide tube and being drawn in while dissecting tissues forward.
[0010] The head portion may include a drawing-in port communicating with the hollow of the guide tube such that a drainage tube is inserted into the guide tube on the upper surface.
[0011] The head portion may include an identification portion protruding forward.
[0012] The head portion may be characterized by being any one of a bar-shaped extending laterally, a spherical shape with a curved surface, and a polyhedron with a polygonal shape.
[0013] The length of the guide tube may be characterized in that it is 20 cm or more and 40 cm or less.
[0014] The guide tube may be characterized in that it has a straight shape.
[0015] The peeling portion may include a fixing portion coupled to the end of the guide tube and a protruding portion formed to protrude in the drawing-in direction.
[0016] The fixing portion may be characterized in that a hollow is formed and the end of the guide tube is inserted into the hollow of the fixing portion.
[0017] The protruding portion may be characterized in that it has a round shape with a non-pointed tip.
[0018] The peeling portion may further include a pumping outlet through which a drainage tube inserted into the guide tube is removed, communicating with the hollow of the guide tube.
[0019] The pumping outlet may be characterized in that it has a shape of either a circle or an ellipse.
[0020] The peeling portion may further include an inclined portion extending so as to be inclined upward from the fixing portion.
[0021] The inclined portion may be characterized in that it is curved at an angle of 25 degrees or more and 55 degrees or less from the fixing portion.
[0022] The length of the inclined portion may be characterized in that it is 1 cm or more and 5 cm or less.
Advantages of the Invention
[0023] It is possible to reach the target point while peeling the extraperitoneal fat layer without damaging tissues and organs and guide the drainage tube.
[0024] By enabling the insertion and surgery of the drainage tube through an extraperitoneal route, the drainage tube will not shift due to the movement of the intestine or the body after surgery, and drainage treatment can be performed for the desired period.
Brief Description of the Drawings
[0025]
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Modes for Carrying Out the Invention
[0026] Hereinafter, with reference 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, it does not exclude other components, but may further include other components.
[0028] The present invention can be modified in various ways and can have various embodiments. Specific embodiments are illustrated in the drawings and described in detail below. This is not intended to limit the present invention to the specific embodiments, but should be understood to correspond to any one of all modifications, equivalents, and alternatives included in the spirit and technical scope of the present invention for connecting and / or fixing structures extending in different directions from each other.
[0029] The terms used in this specification are merely used to describe specific embodiments and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly dictates otherwise.
[0030] Also, in describing the present invention, when it is determined that a detailed description of related known technologies will unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted.
[0031] FIG. 1 is a perspective view of a drainage tube guide device according to an embodiment. FIG. 2 is a front view of a drainage tube guide device according to an embodiment. FIG. 3 is a side view of a drainage tube guide device according to an embodiment. FIGS. 4 and 5 are diagrams for explaining the head portion of a drainage tube guide device according to an embodiment. FIGS. 6 and 7 are diagrams for explaining the peeling portion of another drainage tube guide device according to an embodiment.
[0032] Referring to FIGS. 1 to 5, another drainage tube guide device according to an embodiment includes a head portion 100, a guide tube 200, and a peeling portion 300.
[0033] The head portion 100 may be formed in a bar shape extending in both directions as an embodiment, and may include an inlet 111 into which a drainage tube is drawn on the upper surface.
[0034] The inlet 111 may be formed to communicate with the hollow of the guide tube 200 as an embodiment.
[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 extending in both side directions, a spherical shape composed of a curved surface, or any one of polyhedrons with six or more faces.
[0036] In one embodiment, the handle portion 112 may be in the shape of a rod or bar extending in both side directions so as to serve as a handle, and may further include a plurality of grip grooves (not shown) facing inward and spaced apart from each other for the user's grip.
[0037] The grip grooves (not shown) may be formed as a plurality of grooves recessed to fit the shape of the fingers for a comfortable gripping feeling when the user holds the handle portion 112 in the hand.
[0038] In one embodiment, the head portion 100 may include an identification portion 113 protruding forward. The protruding direction of the identification portion 113 and the protruding direction of the peeling portion 300 may coincide, thereby preventing the peeling portion 300 from being pulled in in the direction opposite to the advancing direction when being pulled into the abdominal cavity.
[0039] In one embodiment, the head portion 100 may be connected to one end 1 of the guide tube 200 by welding.
[0040] The abdominal cavity is composed of the abdominal wall. The abdominal wall is composed of skin, subcutaneous fat layer, muscle layer fascia surrounded by fascia in the front and back, preperitoneal fat layer, and peritoneum.
[0041] In one embodiment, the guide tube 200 may be pulled along the abdominal wall.
[0042] In one embodiment, the guide tube 200 may be formed in a hollow shape communicating with the drawing-in port 111, and may guide the drain tube drawn through the drawing-in port 111.
[0043] In one embodiment, the guide tube 200 may extend downward on the lower surface of the head portion 100.
[0044] The guide tube 200 may extend downward so as to have a linear shape as shown in one embodiment.
[0045] The longitudinal axis of the abdominal cavity is about 30 to 50 cm, the transverse axis is about 20 to 30 cm, and the cross-sectional radius of the abdominal cavity is about 10 to 20 cm, but it may vary depending on body type.
[0046] The longest axis of the abdominal cavity is about 30 to 50 cm from the diaphragm above the liver to the end of the rectum (levator ani muscle), depending on the size of an adult body.
[0047] Taking into account the width and depth of all adult abdominal cavities, the guide tube 200 may have a length of 20 to 40 cm in one embodiment.
[0048] The guide tube 200 may be made of a plastic material or a metal material having a non-bending hardness in one embodiment.
[0049] The guide tube 200 may be made of a bendable soft plastic material in one embodiment.
[0050] The peeling part 300 may communicate with the hollow of the guide tube 200 and be drawn in while peeling tissue forward in one embodiment. When the target point is reached, a drainage tube may be inserted through the insertion port 111 of the head part 100.
[0051] The peeling part 300 may be connected to the other end 2 of the guide tube 200 by welding in one embodiment.
[0052] Referring to FIGS. 6 and 7, the peeling part 300 may include a fixing part 310, a protruding part 320, a pumping outlet 330, and an inclined part 340 in one embodiment.
[0053] The fixing part 310 may be connected to the end of the guide tube 200 in one embodiment.
[0054] The fixing part 310, as one embodiment, may be formed with a hollow inside, and the end of the guide tube 200 may be inserted into the hollow of the fixing part 310 and joined by welding.
[0055] The protruding part 320, as one embodiment, may be formed to protrude in the direction of being drawn in.
[0056] The protruding part 320, as one embodiment, may be formed to incline downward in the end direction. That is, the protruding part 320 may have a round shape with a non-pointed tip.
[0057] The protruding part 320, as one embodiment, may be formed in a wedge shape with a non-pointed tip.
[0058] Through the protruding part 320 with a non-pointed tip, it is possible to reach the target point while peeling the extraperitoneal fat layer without damaging the tissue and organs.
[0059] The extraction port 330, as one embodiment, may communicate with the hollow of the guide tube 200, and the drainage tube inserted into the guide tube 200 may be removed.
[0060] The extraction port 330, as one embodiment, may have any shape of circular or elliptical. The extraction port 330, as one embodiment, may have various shapes other than circular and elliptical.
[0061] When the extraction port 330 is elliptical, by extracting two drainage tubes, the operation time can be shortened and the operation efficiency can be improved.
[0062] As one embodiment, the length 6 (for example, 12.5 mm) of the extraction port 330 may be longer than the width 5 (for example, 6 mm).
[0063] The inclined part 340, as one embodiment, may be formed to extend and incline upward from the fixing part 310.
[0064] The inclined portion 340 may be curved at an angle of 25 to 55 degrees or less from the fixed portion 310 in one embodiment.
[0065] The inclined portion 340 may have a length of 1 to 5 cm in one embodiment.
[0066] In the case of a curved instrument, there is an advantage that it is suitable for moving along the curved surface of the abdominal cavity. However, when changing the direction to reach the target point, the preperitoneal fat layer may be excessively dissected, which may cause unexpected bleeding. In addition, since the user is not accustomed to using a curved instrument compared to a straight instrument, it may be difficult to use.
[0067] On the other hand, in the case of the present invention, when moving to the target point in the abdominal cavity through the straight guide tube 200 and the dissection portion 300 formed to protrude in the advancing direction and incline upward, the dissection of the preperitoneal fat layer can be minimized, and bleeding due to excessive dissection can be prevented.
[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 at an angle of 25 to 55 degrees or less. Such numerical limitations are within a range that can be changed according to the difference in body type when generally reaching the target point farthest from the insertion portion of the abdominal drainage tube for inserting the drainage tube. By inserting the drainage tube outside the abdominal cavity and minimizing the movement of the drainage tube according to the peristaltic movement of the intestine, the body fluid in the abdominal cavity can be effectively drained for a long time, so the treatment effect can be enhanced compared to the conventional method, that is, the procedure of inserting and fixing the drainage tube into the abdominal cavity through the surgical site.
[0069] The present invention relates to a drainage tube guide device including a protruding portion 320 with a non-pointed tip. By reaching the target point while dissecting the extraperitoneal fat layer without damaging tissues and organs, the drainage tube can be inserted through the retroperitoneal cavity to drain the body fluid in the abdominal cavity. Therefore, the process of inserting and fixing the drainage tube into the abdominal cavity through the conventional surgical site can be performed more easily, and the treatment effect can be enhanced.
[0070] As described above in detail with respect to the embodiments of the present invention, the scope of the rights of the present invention is not limited thereto, and various modifications and improvements made by those skilled in the art using the basic concept of the present invention defined in the following claims also belong to the scope of the rights of the present invention.
[0071] Those having ordinary knowledge in the technical field related to this embodiment will understand that it can be realized in a modified form without departing from the essential characteristics described above. Therefore, the disclosed method should be considered from an exemplary perspective rather than a limiting one. The scope of the present invention is shown in the claims rather than the above description, and all differences within the equivalent scope should be construed as being included in the present invention.
Claims
1. A head portion extending in one direction, A guide tube having a hollow formed therein and extending downward from the head portion, A drainage tube guide device comprising a peeling portion that communicates with the hollow of the guide tube and is drawn in while peeling tissue forward.
2. The head portion, The drainage tube guide device according to claim 1, comprising an inlet opening that communicates with the hollow of the guide tube such that a drainage tube is inserted into the guide tube on the upper surface.
3. The head portion, The drainage tube guide device according to claim 1, comprising an identification portion protruding forward.
4. The head portion, The drainage tube guide device according to claim 1, wherein the head portion is any one of a bar-shaped extending laterally, a spherical shape forming a curved surface, and a polyhedron forming a polygon.
5. The drainage tube guide device according to claim 1, wherein the length of the guide tube is 20 cm or more and 40 cm or less.
6. The drainage tube guide device according to claim 1, wherein the guide tube has a linear shape.
7. The peeling portion, A fixing portion coupled to the end of the guide tube, The drainage tube guide device according to claim 1, comprising a protruding portion formed to protrude in the drawn-in direction.
8. The fixing portion has a hollow formed therein, The drainage tube guide device according to claim 7, wherein the end of the guide tube is inserted into the hollow of the fixing portion.
9. The protruding portion, The drainage tube guide device according to claim 7, wherein the protruding portion has a round shape with a non-pointed tip.
10. The peeling portion, The drainage tube guide device according to claim 7, further comprising a pumping outlet that communicates with the hollow of the guide tube and through which a drainage tube inserted into the guide tube is removed.
11. The pumping outlet, The drainage tube guide device according to claim 10, wherein the pumping outlet has a shape of either a circle or an ellipse.
12. The peeling portion, The drainage tube guide device according to claim 7, further comprising an inclined portion that extends so as to be inclined upward from the fixing portion.
13. The inclined portion, The drainage tube guide device according to claim 12, wherein the inclined portion is curved at an angle of 25 degrees or more and 55 degrees or less from the fixing portion.
14. The drainage tube guide device according to claim 12, wherein the length of the inclined portion is 1 cm or more and 5 cm or less.
Citation Information
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