Laparoscopic surgical instrument without a cannula

Abstract

The present invention relates to a laparoscopic surgical instrument without a cannula, comprising a first part which is inserted into the abdominal cavity of a body and which is provided with a surgical instrument, a second part which is located outside the abdominal cavity of the body and which is coupled to the first part to operate the operating state of the surgical instrument, wherein the first part and the second part are coupled to each other mainly by magnetic force while the first part is inserted into the body.

Description

Technical Field

[0001] This invention relates to a cannula-free laparoscopic surgical instrument, and more particularly to a cannula-free (but cannula-functional) laparoscopic surgical instrument comprising a surgical instrument inserted into the abdominal cavity for operation, and an operating unit capable of operating the surgical instrument in an operating state by coupling it to the surgical instrument from outside the body, thereby performing laparoscopic surgery without creating a scar on the abdominal wall. Background Technology

[0002] Laparoscopic surgery is performed by injecting carbon dioxide gas into the abdominal cavity to create space and ensure surgical space and field of vision, creating small holes in the abdominal wall for inserting instruments called cannulas, and then inserting a camera and surgical instruments into the patient through the cannulas to observe the images displayed on a monitor via the camera and perform the surgery.

[0003] Laparoscopic surgery requires at least three surgical instruments. Specifically, laparoscopic surgery requires a camera (laparoscopy) as the main component for viewing the inside of the abdominal cavity during surgery, forceps (a laparoscopic instrument) for holding the tissue, and a device such as a cutter or an ultrasound generator (surgical energy device) for cutting the tissue or performing therapeutic procedures.

[0004] In existing technologies, the multi-port method is mainly used, in which multiple holes corresponding to the number of surgical instruments to be used are drilled simultaneously in the abdomen. A cannula is installed in each hole, and the surgical instruments are individually introduced into the abdominal cavity through each cannula to perform the surgery. This multi-port method can significantly reduce surgical scars compared to conventional laparotomy, but it still leaves many scars.

[0005] At the same time, in order to minimize the possible scarring after surgery, such as Figure 2 As shown, a single-port laparoscopic technique has recently been developed, in which a single incision (three times larger than that used in laparoscopic surgery) is drilled in the abdomen to install a device (port) capable of inserting multiple cannulas. The surgery is then performed by inserting multiple surgical instruments into the abdominal cavity through this single incision using the installed device (port). In this case, the installed device should have multiple cannula sections, such as... Figure 1 As shown, multiple surgical instruments are introduced into the abdominal cavity simultaneously. However, in this single-port surgery, the number of instruments used is limited, and multiple instruments inserted at the same location through a smaller incision conflict with each other, making it impossible to perform the surgery at a larger angle. Therefore, despite the theoretical advantage of considering the patient's quality of life by forming only one incision, this single-port surgery has not been widely used due to technical limitations.

[0006] Therefore, there is a need for a method that can perform laparoscopic surgery safely and effectively, just like the traditional multi-port approach, while maintaining the advantage of minimal surgical scarring. Summary of the Invention

[0007] [Technical Issues]

[0008] The present invention relates to a laparoscopic surgical instrument that does not require a cannula. The laparoscopic surgical instrument includes a surgical instrument that is inserted into the abdominal cavity and operated on, and an operating unit that can perform surgery as a device by coupling with the surgical instrument. The operating unit is located inside the surgical instrument, outside the body, and is developed to have a minimized coupling portion. Therefore, no cannula is inserted into the abdominal wall, thus allowing laparoscopic surgery to be performed without leaving scars due to incisions.

[0009] The objectives of this invention are not limited to those described above, and those skilled in the art will clearly understand from the following description other objectives not described herein.

[0010] [Technical Solution]

[0011] To achieve the above objectives, according to one embodiment of the present invention, a laparoscopic surgical instrument without a cannula includes a first part inserted into the body and comprising a surgical instrument, and a second part located outside the abdominal cavity and coupled to the first part to operate the surgical instrument in an operational state, wherein, in the state where the first part is inserted into the body, the first part and the second part are coupled to each other primarily by magnetic force.

[0012] [Beneficial Effects]

[0013] According to an embodiment of the present invention, laparoscopic surgery can be performed using surgical instruments inserted into the abdominal cavity and an operating unit capable of operating the surgical instruments by coupling them to the outside of the body, without using a separate cannula for laparoscopic surgery.

[0014] Therefore, unlike traditional single-port methods, it does not require the installation of multiple surgical instruments through a single incision. Furthermore, by ensuring the same degree of freedom for surgical instruments as traditional multi-port laparoscopic surgery, it provides the necessary precision for all laparoscopic procedures.

[0015] The effects of the present invention are not limited to those described above, and those skilled in the art will clearly understand from the following description other effects not described herein. Attached Figure Description

[0016] Figure 1 This is a view showing conventional laparoscopic instruments.

[0017] Figure 2A conceptual diagram representing a traditional single-port surgery is shown.

[0018] Figure 3 This is a conceptual diagram illustrating a cannula-free laparoscopic surgical instrument according to one embodiment of the present invention.

[0019] Figure 4 This is a conceptual diagram illustrating the coupling state of a cannula-free laparoscopic surgical instrument according to an embodiment of the present invention.

[0020] Figure 5 This is a flowchart illustrating a method of using a cannula-free laparoscopic surgical instrument according to an embodiment of the present invention. Detailed Implementation

[0021] [Best Mode of the Invention]

[0022] In the following, exemplary embodiments of the invention will be described in detail with reference to the accompanying drawings. In this context, the same reference numerals are used in the drawings to denote the same or similar parts. Detailed descriptions of well-known functions and constructions that would obscure the essential points of the invention will be omitted. For the same reason, some elements in the drawings are enlarged, omitted, or schematically shown.

[0023] In the specification, when a part may "comprise" or "contain" a particular component, it shall not be construed as excluding another component, but rather as including other components, unless explicitly stated otherwise. Furthermore, in the specification, the word "above" indicates that it is located above or below the target part, rather than substantially indicating that it is located below the target part based on the direction of gravity.

[0024] Figure 3 This is a conceptual diagram illustrating a cannula-free laparoscopic surgical instrument according to one embodiment of the present invention. Figure 4 This is a conceptual diagram illustrating the coupling state of a cannula-free laparoscopic surgical instrument according to an embodiment of the present invention.

[0025] refer to Figure 3 and 4 The laparoscopic surgical instrument 10, which does not require a cannula, includes a first part 110 inserted into the body and a second part 120 located outside the body. The first part 110 and the second part 120 can be magnetically coupled to each other while the first part 110 is inserted into the body.

[0026] The first part 110 is inserted into the abdominal cavity and includes a first body 111, a surgical instrument 112, a first magnet 113, and a needle receiver 114. The first part 110 can be inserted into the body, for example, using a cannula designed for conventional single-port laparoscopic surgery.

[0027] The first body 111 is used to support the surgical instrument 112 and can be configured to extend in one direction to support the surgical instrument 112.

[0028] Although Figure 3 Not shown, but the first body 111 may include a communication module, a battery, etc. Here, when the first part 110 and the second part 120 are coupled to each other, the communication module forms a communication channel between the first part 110 and the second part 120. Signals are transmitted through the formed communication channel according to the operation of the second part 120 to operate the surgical instrument 112 of the first part 110.

[0029] The surgical instrument 112 is coupled to one end of the first body 111 and operates according to the operation of the second part 120. Figure 3 An example of surgical instrument 112 being formed as forceps is shown, but the invention is not necessarily limited to this. That is, surgical instrument 112 can be formed as any of a power device, forceps, and surgical scissors, and it is self-evident that a variety of surgical instruments that can be used in laparoscopic surgery can be applied. In addition, surgical instrument 112 coupled to the first body 111 can be replaced with various types as needed.

[0030] The first magnet 113 may be disposed at the other end of the first body 111 that is coupled to the second body 121. The first magnet 113 may be formed in a ring shape, as will be described below with respect to the needle receiving portion 114 formed in its central portion, but its shape is not necessarily limited thereto. Alternatively, the first magnet 113 may be formed as a neodymium magnet, so that it will not easily separate when coupled to the second magnet 123, but the invention is not necessarily limited thereto. Furthermore, the first magnet 113 may be formed as an electromagnet.

[0031] A needle receiving portion 114 may be additionally provided at another end of the first body 111 that is coupled to the second body 121. For example, the needle receiving portion 114 may be formed in the center of the first magnet 113 to receive a needle 124 protruding from the second portion 120. When the first portion 110 and the second portion 120 are coupled to each other primarily by magnetic force with a ventral wall inserted between them, the coupling between the first portion 110 and the second portion 120 can be maintained more firmly when the needle 124 is inserted and coupled to the needle receiving portion 114 as will be described below.

[0032] The second part 120 is located outside the abdominal cavity, coupled to the first part 110 to operate the surgical instrument 112, and includes a second body 121, an operating unit 122, a second magnet 123, and a needle 124.

[0033] The second body 121 may be formed in a shape corresponding to the first body 111, such that one end of the second body 121 may be coupled to the first body 111, and the other end of the second body 121 may be connected to the operating unit 122. The second body 121 may be formed to extend in one direction like the first body 111.

[0034] Although Figure 3 Not shown, but the second body 121 may include a communication module, a battery, etc. As described above, when the first part 110 and the second part 120 are coupled to each other, the communication module forms a communication channel between the first part 110 and the second part 120. Signals are transmitted through the formed communication channel according to the operation of the second part 120 to operate the surgical instrument 112 of the first part 110.

[0035] The operation unit 122 can be used to operate the surgical instrument 112 and includes various setting buttons or operation buttons depending on the type or state of the surgical instrument 112. Input signals can be sent to the surgical instrument 112 of the first part 110 via a communication channel based on the operation of the setting buttons or operation buttons.

[0036] The second magnet 123 may be disposed at one end of the second body 121 that is coupled to the first body 111. The second magnet 123 may be formed in a ring shape, as described below with a needle 124 protruding from its center, but its shape is not necessarily limited thereto. Alternatively, the second magnet 123 may be formed as a neodymium magnet, so that it will not easily separate when coupled to the first magnet 113, but the invention is not necessarily limited thereto. Furthermore, the second magnet 123 may be formed as an electromagnet.

[0037] The needle 124 may be additionally disposed at one end of the second body 121 that is coupled to the first body 111. For example, the needle 124 may be formed to protrude from the center of the second magnet 123. The needle 124 protrudes according to the operation of the operating unit 122, passes through the patient's abdominal wall W, and is inserted and coupled to the needle receiving portion 114 formed in the first body 111 of the first portion 110. In this way, when the needle 124 is coupled to the needle receiving portion 114, the coupling between the first portion 110 and the second portion 120 can be maintained more firmly, so that the first portion 110 and the second portion 120 will not easily separate.

[0038] [Mode of the Invention]

[0039] Figure 5 This is a flowchart illustrating a method of using a cannula-free laparoscopic surgical instrument according to an embodiment of the present invention.

[0040] refer to Figure 5According to one embodiment of the present invention, a cannula-free laparoscopic surgical instrument can be operated in the following sequence.

[0041] First, prepare for laparoscopic surgery (1). At least one incision may be created in the abdominal wall for laparoscopic surgery. This invention is applicable to both single-port and multi-port laparoscopic surgeries.

[0042] Subsequently, the first part was inserted into the body through the wound formed (2).

[0043] Next, the first part inserted into the body is coupled to the second part (3). In this case, the first and second parts are coupled primarily by magnetic force, and can also be coupled more firmly by guiding the first and second parts with a needle. Laparoscopic surgery is performed with the first and second parts coupled as described above.

[0044] Finally, when the surgery is complete, the first and second parts are separated to remove the first part from the body (4). In this case, it is not necessary to perform separate suturing on the abdominal wall portion where the first and second parts are coupled, and no scar will be left.

[0045] Figure 6 This is a view used to describe the construction of the guide section for secure coupling between the first and second parts.

[0046] refer to Figure 6 Either the first part or the second part is provided with a guide portion capable of accommodating the other part. In this case, the two parts are magnetically formed into one unit only when the first part and the second part are in precise contact through the guide portion G.

[0047] exist Figure 7 In addition, the present invention also provides a construction in which a first part and a second part are magnetically coupled by means of a column S provided with a surgical tool such as a needle and extending from a first part to a second part, thereby improving the integrity of the surgical tool in a physical manner.

[0048] refer to Figure 7 After the first and second parts are coupled, the column inside the first part extends toward the second part. As a result, surgical instruments such as needles are also stably extended to the surgical site via the first-second part through the column, and are more stable than in examples where the coupling structure is maintained solely by magnetic force.

[0049] Meanwhile, the embodiments of the invention shown in this specification and accompanying drawings are presented as specific examples to readily describe the technical content of the invention and enhance understanding of the invention, and are not intended to limit the scope of the invention. It will be apparent to those skilled in the art that various modifications and variations can be made based on the technical concept of the invention, in addition to the embodiments disclosed herein.

[0050] [Industrial Applicability]

[0051] This invention relates to a surgical instrument and has industrial applicability.

Claims

1. A laparoscopic surgical instrument that does not require a cannula, the laparoscopic surgical instrument comprising: The first part, which is inserted into the body, includes surgical instruments; as well as The second part, located outside the abdominal cavity and coupled to the first part, controls the operational state of the surgical instruments. When the first part is inserted into the body, the first part and the second part are primarily coupled to each other via magnetic force. The second part includes a needle that protrudes according to the operation performed by the operating unit. The first portion includes a needle receiving portion configured to receive the needle protruding from the second portion. In this configuration, with the first and second parts connected primarily by magnetic force through an abdominal wall, the needle protrudes and inserts into the needle receiving portion, causing the first and second parts to be secondary coupled to each other. Either the first part or the second part is provided with a guide portion capable of accommodating the other part therein, and is configured such that the first part and the second part are formed into one by the magnetic force only when the first part and the second part are in precise contact within the guide portion.

2. The laparoscopic surgical instrument according to claim 1, wherein, The first part includes: A first body is formed to extend in one direction and is configured to support the surgical instrument; The surgical instrument, coupled to one end of the first body; and A first magnet is disposed at the other end of the first body.

3. The laparoscopic surgical instrument according to claim 2, wherein, The second part includes: The second body is formed to extend in one direction and one end of it is coupled to the first body; The operating unit, which is connected to the other end of the second body and is configured to operate the surgical instrument; and A second magnet is disposed at one end of the second body.

4. The laparoscopic surgical instrument according to claim 3, wherein: The first and second entities each further include a communication module; and When the first part and the second part are coupled to each other, the communication module forms a communication channel between the first part and the second part to transmit signals according to the operation performed by the second part.

5. The laparoscopic surgical instrument according to claim 1, wherein, The surgical instruments are configured as energy devices and are replaceable.

6. The laparoscopic surgical instrument according to claim 1, wherein, The surgical instruments are configured as either forceps or surgical scissors and are replaceable.

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