Surgical sealing pad using adhesive

The surgical seal pad employing a non-sewing adhesive addresses the time-consuming nature of suturing in micro-invasive surgeries, achieving reduced surgical and anesthesia times, lower medical expenses, and improved patient health.

WO2025095280A1PCT designated stage expired Publication Date: 2025-05-08INDUSTRYACADEMIC COOPERATION FOUNDATION GYEONGSANG NATIONAL UNIVERSITY
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Patent Information

Application Number
PCT/KR2024/010651
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2023-11-02
Filing Date
2024-07-24
Publication Date
2025-05-08

AI Technical Summary

Technical Problem

Surgical suturing in micro-invasive surgeries such as laparoscopy and robot surgery is time-consuming and labor-intensive, contributing to increased medical expenses and prolonged anesthesia times.

Method used

A surgical seal pad using a non-sewing adhesive that is harmless to the human body, which seals tissues by applying a fast adhesive and chronic adhesive, along with additional artificial dermis and hemostatic agents, to reduce surgical and anesthesia times.

Benefits of technology

The use of the surgical seal pad significantly reduces surgical time and anesthesia duration, thereby lowering overall medical expenses and promoting patient health by minimizing postoperative complications.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention provides a surgical sealing pad using an adhesive. The present invention comprises: a close-contact member having a border formed in a size that surrounds the vicinity of an area to be surgically sutured; a sealing member having a skin structure formed within the inner diameter of the border so as to cover the surface of the surrounded area to be surgically sutured; and an inducing agent injected into the border and the skin structure so as to be diffused in the area to be surgically sutured.
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Description

Surgical sealing pad using adhesive

[0001] The present invention relates to a pad that bonds, fixes, and seals perforation sites between tissues using an adhesive without surgical sutures in surgical open surgery and minimally invasive surgery (laparoscopic and robotic surgery).

[0002] In minimally invasive surgery (laparoscopic and robotic surgery), suturing is an essential and always challenging task.

[0003] In open surgery, suturing, which takes less than 5 minutes, can take more than 30 minutes or even an hour.

[0004] Therefore, in minimally invasive surgery, surgical time is related to reducing sutures.

[0005] Although suturing has become easier with the recent transition from laparoscopic surgery to robotic surgery, suturing is always difficult and challenging for surgeons.

[0006] In the case of suturing, in addition to the necessary anastomosis of the organs, it is absolutely necessary to prevent postoperative complications such as internal hernia, but suturing for simple fixation is also often performed.

[0007] In addition, in the case of ulcer perforation, laparoscopic suturing has become essential due to the recent development of laparoscopy, but in the past, a surgical method was also performed that simply closed the ulcer without suturing using the omentum, which is a fatty tissue in the abdominal cavity.

[0008] In this way, providing a method to bond, fixate, and seal perforation sites between tissues using adhesives without surgical sutures in open surgery and minimally invasive surgery (laparoscopic and robotic surgery) is expected to contribute to a dramatic reduction in surgical time and, through this, anesthesia time, to a reduction in overall medical costs and to the improvement of patient health.

[0009] In order to pursue the reduction of medical expenses and the improvement of patient health, a medical device for protecting anastomosis with a double-membrane structure was applied for at the Korean Intellectual Property Office and published as Patent Publication No. 10-2018-0137914 (hereinafter referred to as the “previous designation”).

[0010] The medical device for protecting an intestinal anastomosis having a double-membrane structure of the present invention comprises a substrate, an inner membrane as an adhesive surface adhered to one side of the substrate and in direct contact with living tissue, and an outer membrane coated on the other side of the substrate and having an adhesion prevention function with living tissue facing the inner membrane, so that the inner membrane of the mesh is protected while the outer membrane of the mesh can prevent unnecessary adhesion with other organs, thereby minimizing secondary intestinal adhesion phenomenon caused by the mesh itself that may occur when the existing mesh itself is composed entirely of a single-membrane material having adhesive properties.

[0011] The purpose of the present invention is to fix tissue by non-suturing sealing using a rapid adhesive and a chronic adhesive that are harmless to the human body, and to seal the perforation site by applying additional artificial dermis and a hemostatic agent, thereby shortening the suturing time and the overall surgical time.

[0012] The present invention sufficiently achieves its purpose by providing a composition including: an artificial dermis inserted into a laparoscopic puncture hole; a sealing member formed with a border that is large enough to surround the area to be surgically sutured and made of a material that melts harmlessly to the human body; a sealing member provided with a skin body formed on the inner diameter of the border and covering the surface of the area to be surgically sutured and made of a material that melts harmlessly to the human body; and an inducing agent that is injected into the border and the skin body and diffuses into the area to be surgically sutured.

[0013] In a configuration in which the purpose of the present invention is achieved, the sealing member is preferably configured such that a hollow induction hole into which the induction agent is injected is formed inside the frame, and an injection hole for the discharge of the injected induction agent is formed at a predetermined interval on the bottom surface of the frame, and is connected to the induction hole.

[0014] In a configuration in which the purpose of the present invention is achieved, the sealing member is preferably configured such that the skin body is formed in two layers, a sealing hole into which the inducing agent is injected and filled is formed between the two layers, and a discharge hole through which the injected inducing agent is discharged to the surface of the surgical suture target area is formed at a predetermined interval on the bottom surface of the sealing hole.

[0015] In a configuration in which the purpose of the present invention is achieved, the inducing agent is preferably composed of a rapid adhesive used initially while attached to the mesentery of the large intestine, and a chronic adhesive used thereafter to adhere and seal through the inflammatory plaque.

[0016] In a configuration in which the purpose of the present invention is achieved, it is preferable that a first inlet is formed on the outer surface of the sealing member through which the inductive agent is injected into the inner induction hole, and a second inlet is formed on the outer surface of the sealing member through which the inductive agent is injected into the sealing hole.

[0017] In a configuration in which the purpose of the present invention is achieved, it is preferable that the sealing member is configured to fuse the central position of the sealing hole into which the inducing agent is filled through the second inlet and to fuse in a slanted manner in the left and right directions from the central position so that the inducing agent is diffused and induced throughout the entire sealing hole.

[0018] The present invention is expected to contribute to a reduction in overall medical expenses and the improvement of patient health by drastically reducing the surgical time and thereby reducing the anesthesia time by sealing the perforated site of an abdominal cavity by using a rapid adhesive and a chronic adhesive that are harmless to the human body to fix the tissue and sealing the site of perforation of an organ by applying an additional artificial dermis and a hemostatic agent.

[0019] Figure 1 is a plan view of a sealing pad to which the present invention is applied.

[0020] Figure 2 is a bottom view of a sealing pad to which the present invention is applied.

[0021] Figure 3 is a longitudinal cross-sectional view showing the internal structure of the present invention.

[0022] Figure 4 is a state diagram of the sealing pad of the present invention.

[0023] Figure 5 shows the state of artificial dermis treatment in the perforation site according to the procedure sequence in which the present invention is applied to the perforation site.

[0024] Figure 6 is a diagram showing the state of the sealing pad.

[0025] Figure 7 is a diagram of a treatment state to which the present invention is applied.

[0026] Figure 1 shows a planar state of a sealing pad to which the present invention is applied, and explains the configuration of the sealing pad of the present invention.

[0027]

[0028] The sealing pad (200) of the present invention is provided with an artificial dermis (100) that is inserted into a laparoscopic perforation hole that is a target of surgical suturing.

[0029] It includes a sealing member (300) formed with a border (310) of a size that wraps around a surgical suture target area and is made of a material that melts harmlessly to the human body, and a sealing member (400) provided with a skin body formed on the inner diameter of the border (310) and covered with the surface of the surgical suture target area that is made of a material that melts harmlessly to the human body.

[0030] In addition, it is configured to include an inducing agent (A) that is injected into the border (310) and the skin body (410) and diffuses to the surgical suture target area.

[0031]

[0032] Fig. 2 shows the bottom state of a sealing pad to which the present invention is applied, and Fig. 3 shows a longitudinal cross-section showing the internal structure of the present invention.

[0033] The sealing pad (200) of the present invention wraps around the area to be surgically sutured and forms a contact state, and is composed of a material that melts and is absorbed after a certain period of time due to the temperature of the human body in contact, so it is preferable to form it of a material that is harmless to the human body.

[0034] In addition, the sealing pad (200) of the present invention has a basic semicircular shape and a round shape, but can be manufactured in various shapes depending on the intended use.

[0035] In forming the above sealing pad (200), the sealing member (300) formed to a size sufficient to wrap around the surgical suture target area has a hollow tube-shaped induction hole (320) formed inside the edge (310) into which the induction agent is injected.

[0036] A first inlet (313) is formed on the outer surface of the above-mentioned adhesive member (300) through which the induction agent (A) is injected into the induction hole (320) inside.

[0037] And, on the lower surface of the above-mentioned frame (310), a jet hole (330) for the discharge of the injected inducing agent (A) is formed at a predetermined interval, and is formed to be connected to the induction hole (320).

[0038] The sealing member (400) has a double layer of the skin body (410), and a sealing hole (430) into which the inducing agent is injected and filled is formed between the two layers, and a second inlet (413) into which the inducing agent (A) is injected into the sealing hole (430) is formed on the outer surface of the sealing member (400).

[0039] A discharge hole (450) is formed at a predetermined interval on the bottom surface of the above-mentioned sealing hole (430) through which the injected inducing agent (A) is discharged to the surface of the surgical suture target area.

[0040] The above sealing member (400) is fused at the central position of the sealing hole (430) into which the inducing agent is filled through the second inlet, and is fused in a form that slopes left and right like a tree branch from the fused central position.

[0041] The purpose of fusing the sealing hole (430) like a tree branch is to ensure that the inducing agent (A) is evenly spread and induced throughout the entire sealing hole (430).

[0042] It is preferable to use the above-mentioned inducing agent (A) as a rapid adhesive (A1) that is initially used while attached to the large intestine mesentery, and as a chronic adhesive (A2) that is used later and adheres and seals through the inflammatory plaque.

[0043]

[0044] Figure 4 shows the state of operation for the sealing pad of the present invention.

[0045] A jet hole (330) is formed on the bottom surface of the skin body (410) and inside the inner lumen of the tubular sealing member (400) of the present invention.

[0046] This is to sequentially inject a chronic adhesion agent (A2) after injecting a hemostatic agent.

[0047] In the sealing pad (200) of the present invention, depending on the purpose of use, the injection locations of the rapid adhesive (A1) and the chronic adhesive (A2), which are the injection agents (A), may be switched to seal the perforation and the surrounding area.

[0048] A product in which the dermis extracted from a human corpse is treated with radiation or the like to eliminate the immune response while the artificial dermis (100) is inserted through a perforation formed through minimal invasion, or a product in which the dermis of an animal such as a pig or shark is treated is also possible.

[0049] The hemostatic agent injected before the chronic adhesion agent (A2) is a product made of substances that are normally involved in hemostasis in the human body, such as collagen, thrombin, and fibrinogen, which are usually used for hemostasis after surgery. It is a product that solidifies into a solid after being injected in a liquid form.

[0050]

[0051] Meanwhile, adhesives are currently widely used as medical bonds, such as histoacryl, and mussel adhesives made from mussels are also useful, but are not necessarily limited to these materials.

[0052] In addition, as an adhesion agent, minocycline and doxycycline, which are types of antibiotics, have been traditionally used as sclerosing agents for lung adhesion in emphysema, but they are not necessarily limited to these materials.

[0053]

[0054] Fig. 5 is a state of artificial dermis treatment in a perforation site according to the procedure order in which the present invention is applied to the perforation site, Fig. 6 is a state of treatment of a sealing pad, and Fig. 7 is a state of treatment in which the present invention is applied.

[0055]

[0056] First, as shown in FIG. 5, an artificial dermis (100) made in a shape suitable for the perforation site is inserted into the perforation site, and then, as shown in FIG. 6 or FIG. 7, a sealing pad (200) is covered to cover the perforation site and its surroundings, and a rapid adhesive (A1) is injected through the edge (310) of the sealing member (300), so that the sealing pad (200) is attached to the wall of the organ.

[0057] Afterwards, the space between the sealing member (400) of the sealing pad (200) and the artificial dermis (100) is filled with a hemostatic agent to eliminate the empty space.

[0058] As described above, when the hemostatic agent is filled into the dermis and the bottom surface of the skin body (410) of the sealing member (400), the chronic adhesion agent (A2) is finally injected into the sealing hole (430) of the skin body (410), and then the injection tube connected to the second inlet (413) is cut.

Claims

1. Artificial dermis inserted into a laparoscopic perforation hole that is the target of surgical suturing; A sealing member formed with a border that is large enough to wrap around the area to be surgically sutured and made of a material that melts harmlessly into the human body; A sealing member having a skin body formed on the inner diameter of the above-mentioned border and covered with the surface of the surgical suture target area, which is made of a material that melts harmlessly into the human body; A surgical sealing pad using an adhesive comprising an inducing agent that is injected into the above-mentioned border and inside the above-mentioned skin body and diffuses into the surgical suture target area.

2. In paragraph 1, The above adhesive member is, A surgical sealing pad using an adhesive, characterized in that a hollow induction hole into which the induction agent is injected is formed inside the frame, and an injection hole for the discharge of the injected induction agent is formed at a predetermined interval on the bottom surface of the frame, and is formed to be connected to the induction hole.

3. In paragraph 1, The above sealing member, A surgical sealing pad using an adhesive, characterized in that the skin body is made of two layers, a sealing hole is formed between the two layers into which the inducing agent is injected and filled, and a discharge hole is formed at a predetermined interval on the bottom of the sealing hole through which the injected inducing agent is discharged to the surface of the surgical suture target area.

4. In paragraph 1, The above inducing agent is, A surgical sealing pad using an adhesive, characterized by a rapid adhesive used initially while attached to the mesentery of the large intestine, and a chronic adhesive used later to adhere and seal through the inflammatory plaque.

5. In paragraph 1, A surgical sealing pad using an adhesive, characterized in that a first inlet is formed on the outer surface of the sealing member through which the inductive agent is injected into the inner induction hole, and a second inlet is formed on the outer surface of the sealing member through which the inductive agent is injected into the sealing hole.

6. In paragraph 1, The above sealing member, A surgical sealing pad using an adhesive, characterized in that the central position of the sealing hole into which the inducing agent is filled is fused through the second inlet, and the inducing agent is fused in a slanted direction from the central position to the left and right, so that the inducing agent is diffused and guided throughout the entire sealing hole.

Citation Information

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