KR20230027646A - A laparoscopic surgery retrieval pouch - Google Patents

Abstract

The present invention relates to a tissue removal device for laparoscopic surgery, which allows air generated by enabling an injector to perform translational motion to be injected into an insert of the device through an air conditioning passage of a pouch, to restore the shape of the pouch to remove tissue easily, fixes or separates the insert and a pipe or the insert and the injector with one simple operation during a tissue removal process, to apply necessary operation, and simultaneously fixes components that do not require to be operated, to prevent malfunction caused by a user's mistake.

Description

Tissue extraction device for laparoscopic surgery {A laparoscopic surgery retrieval pouch}

The present invention relates to a tissue removal device for laparoscopic surgery, and more specifically, by injecting air generated by translating an injector into an insert of the device through an air injection passage of a pouch, the shape of the pouch can be restored to make it easier The present invention relates to a tissue removal device for laparoscopic surgery capable of extracting tissue efficiently.

Laparoscopic surgery is a surgical technique in which several small incisions are made in the abdomen and a video camera and various instruments are inserted into the abdominal cavity through these holes. Laparoscopic surgery has a smaller incision compared to traditional open surgery, so the surgical wound looks good cosmetically and the pain caused by the wound is much less. In addition, since it shows a fast recovery rate, it has the advantage of being able to quickly return to daily life with a shorter hospital stay compared to open surgery. After the patient is anesthetized, a needle is pierced into the patient's navel to create a state of relief (inflating the abdominal cavity by injecting carbon dioxide into the abdominal cavity), and a trocar (the instrument can move in and out of the abdomen) as many as necessary for the appropriate position. through the narrow tube). When a camera is inserted through the trocar, intra-abdominal images are projected on a monitor in front of the operator, and the operator performs the desired operation using an appropriate laparoscopic instrument while watching the monitor.

To perform surgery, a user, such as a surgeon, introduces working tools through a trocar to the surgical site and maneuvers them from outside the abdominal cavity. On the other hand, the surgeon monitors the progress by a monitor displaying images of the surgical site taken by the laparoscope. Endoscopy techniques similar to this are widely used in retroperitoneoscopy, pelviscopy, arthroscope, cerebral endoscopy, sinusoscopy, hysteroscope, nephroscope, cystoscope, urethroscopy, pyelonescope, and the like.

Human tissues or organs excised during laparoscopic surgery are placed in a translucent pouch made of synthetic resin and extracted outside the body through an incision in the body. Such a pouch is also called an “endo-bag”, and the tissue removal device includes an elastic member for opening the entrance of the pouch, and a pipe and a pouch for storing the elastic member and the pouch while being inserted therein. It consists of an insert that pushes the tube out of the tube and allows it to unfold inside the abdominal cavity.

In Korean Patent Registration No. 10-1893987, when an elastic member provided inside the pipe supports the pouch and the elastic member is withdrawn through an operating rod, the circular elastic member having one side cut off restores the entrance of the pouch. A tissue extraction device for laparoscopic surgery of an open type is disclosed, but there is no function to restore the pouch in the lower direction where the tissue is contained, so when the pouch does not unfold in the downward direction, a separate tool must be used to prepare a space to contain the tissue. there is In addition, Korean Patent Publication No. 10-2019-001052 also discloses a tissue removal device, and the rear end of the string extension is coupled to the detachable tip, reducing the risk of the string extension falling into the abdominal cavity during surgery and removing the pouch from the body. A device having the advantage of being easy to pull the string when withdrawing is proposed, but it also has the same problem.

Republic of Korea Patent Registration No. 10-1893987 Republic of Korea Patent Publication No. 10-2019-001052

An object of the present invention is to solve this problem, by injecting air generated by the translational motion of an injector into an insert of a tissue removal device through an air injection passage of a pouch, thereby restoring the shape of the pouch to more easily remove tissues. It is to provide a tissue extraction device for laparoscopic surgery that can be extracted.

According to one aspect of the present invention, the present invention is a hollow hollow pipe with one side open and the other end provided with a first handle, a hollow hollow pipe with an elastic member installed at one end and translational movement inside the pipe An insert provided to perform a translational motion by being inserted into the insert, and an inlet portion which is open to contain the excised tissue is provided on an upper surface thereof, and the inlet portion is supported by the elastic member and along a circumferential surface excluding the inlet portion. Provided is a tissue extraction device for laparoscopic surgery including a pouch having an air injection passage and the shape of which is restored while being expanded as the injector advances in the insert and air is injected through the air injection passage.

The tissue extraction device for laparoscopic surgery according to the present invention, without having a separate air injection device, translates the injector inserted into the insert and injects air generated therethrough through the air injection passage of the pouch. The shape of the pouch can be restored to provide a space where tissue can be easily contained inside the pouch, and when the injector is moved to the rear side by providing a check valve, the injected air does not escape and the pouch shape can be maintained. .

In addition, in the process of tissue extraction, inserts and pipes or inserts and injectors can be fixed or unfixed with one simple motion, and components that do not require manipulation are fixed so that they do not move while performing necessary manipulations, thereby preventing malfunction caused by user mistakes. can do.

1 and 2 are perspective views of a tissue extraction device for laparoscopic surgery according to an embodiment of the present invention.
Figure 3 is a side cross-sectional view of the tissue extraction device for laparoscopic surgery according to an embodiment of the present invention.
4 is an exploded perspective view of a pipe, an insert and an injector;
5 is a perspective view of a main part of a state in which a coupling release means is coupled to a pipe;
Figure 6 is a main part view of the state in which the insert and the fixing member are coupled.
7 is a cross-sectional view showing the air flow through the check valve inside the injector;
8 to 14 are operating state diagrams of a tissue extraction device for laparoscopic surgery according to an embodiment of the present invention.

In order to fully understand the present invention and its operational advantages and objectives achieved by the practice of the present invention, reference should be made to the accompanying drawings illustrating preferred embodiments of the present invention and the description in the drawings.

Hereinafter, the present invention will be described in detail by describing preferred embodiments of the present invention with reference to the accompanying drawings. Like reference numerals in each figure indicate like elements.

1 and 2 are perspective views of a tissue removal device for laparoscopic surgery according to an embodiment of the present invention, FIG. 3 is a side cross-sectional view of a tissue removal device for laparoscopic surgery according to an embodiment of the present invention, and FIG. 4 is a pipe and insert and an exploded perspective view of an injector, FIG. 5 is a perspective view of a main part of a state in which a disengagement means is coupled to a pipe, FIG. 6 is a main part of a state in which an insert and a fixing member are coupled, and FIG. 7 is a view through a check valve inside the injector. A cross-sectional view of the main part showing the air flow.

Hereinafter, a tissue extraction device for laparoscopic surgery according to various embodiments of the present invention will be described in detail with reference to FIGS. 1 to 7 .

According to one aspect of the present invention, the present invention is a hollow hollow pipe having one side open and the other side having a first handle 11 (10); an insert (20) having an empty hollow inside and having an elastic member (21) installed at one end thereof, and provided to move in translation within the pipe (10); an injector 30 that is inserted into the insert 20 and performs a translational motion; And the upper surface is provided with an open inlet 41 to contain the excised tissue, the inlet 41 is supported by the elastic member 21 and along the circumferential surface excluding the inlet 41. An air injection passage 43 is provided, and the injector 30 advances within the insert 20 and air is injected through the air injection passage 43 to form a pouch 40 that is expanded and restored. It provides a tissue extraction device (1) for laparoscopic surgery that includes.

The pouch 40 may be made of a biocompatible polymer material, for example polyurethane, polyethylene, polypropylene, vinyl, latex, or the like. By overlapping the film made of such a polymer resin in two layers, the upper surface of the pouch is provided in an open form as an inlet portion capable of containing tissues, and the peripheral portion excluding the inlet portion 41 is adhered or fused. It can be. The circumferential portion may be provided with two adhesive or fusion-type lines so that an air injection passage 43 is provided between the two lines.

A hollow elastic member insertion portion 42 is formed around the inlet portion 41, and a string 45 and an elastic member 21 are inserted into the hollow portion of the elastic member insertion portion 42, so that the elastic member (21) maintains a pressed shape in the transverse direction inside the pipe 10, and then restores the original shape as it is drawn out of the pipe 10, and expands the inlet portion 41 to open to contain tissue. .

At this time, the elastic member 21 has a circular shape that spreads the inlet portion 41 in the transverse direction, and the elastic member 21 is made of metal or synthetic resin having elasticity while having a certain stiffness. One side portion that meets while being gathered at both sides is provided in a cut form to maintain a pressed shape in the transverse direction inside the pipe 10, and the cut end portion of the elastic member 21 is mutually rubber, latex When the elastic member 21 is connected by a tube made of a soft material such as the pipe 10, the end of the elastic member 21 is easily folded, but the end of the elastic member is mutually supported so that it does not shake in the longitudinal direction during the surgery after withdrawal. Elastic member fixing means may be additionally provided.

That is, the pouch 40 is stored in a state where one side is open and the other side is folded inside the pipe 10 equipped with the first handle 11, and then it is pulled out of the pipe 10 in the course of surgery and the elastic member 21 It is used in an unfolded state together according to the shape restoration.

The pipe 10 is inserted through the trocar during surgery and serves to insert the pouch 40 into the abdominal cavity, and the pipe 10 is also inserted into the living body and is preferably made of a biocompatible material, It can be made of metal or plastic resin.

A hole into which the insert 20 can be inserted is formed on the rear side of the pouch 40 where the first handle 11 is located, and an insert for pushing the pouch 40 forward through the pipe 10 and inserting it into the abdominal cavity (20) is inserted inside the pipe (10) through this hole.

The insert 20 has a hollow pipe shape, and an elastic member 21 is provided at a front end thereof to support the pouch 40 .

The insert 20 may be made of a metal material or a synthetic resin material. A handle or hook may be additionally provided at the rear end of the insert 20 so that the user can conveniently move the insert 20 forward or backward, and the injector 30 may be inserted at the rear of the insert 20. A hole is formed so that

In addition, the injector 30 is inserted through a hole formed on the rear surface of the insert 20, the injector 30 advances toward the front surface of the insert 20, and compresses air using the volume of the internal space to Air is delivered to the front opening of the insert (20). The delivered air is injected into the air injection passage 43 formed along the circumferential surface of the pouch 40 to inflate the air injection passage 43 portion of the pouch 40 while spreading the pouch 40 downward. becomes At this time, an air injection tube 44 is provided at one side of the pouch 40 to communicate with the air injection passage 43 so that the air delivered from the injector 30 can be smoothly delivered to the air injection passage 43. The air injection tube 44 has one end inserted into the air injection passage 43 and the other end inserted into one end of the insert 20, and a portion other than the portion where the air injection tube 44 is inserted. It may be provided in the form of closing.

In addition, when the air injection amount is not sufficient, the injector 30 can be retracted backward to inject air through repetitive pumping. A check valve 22 may be additionally provided to control air flow so that only air passes therethrough.

As shown in FIGS. 6 and 7, the check valve 22 is formed in a conical shape with a hollow inside, and incisions 23 cut at regular intervals are formed on an inclined outer circumferential surface, and the injector When the incision 30 is retracted, the conical incision 23 is widened by the incision 23, and air is injected into the tube, and when the injector 30 is advanced, the incision 23 part is closed. While the air is blocked, the air filled in the volume inside the tube of the injector 30 may be delivered to the air injection passage 43 via the air injection tube 44, but is not limited thereto.

According to another aspect of the present invention, in the present invention, a fixing member 50 that can be fixed or released by a user's manipulation is installed at the other end of the pipe 10, so that the insert 20 and the pipe 10 are mutually connected. It may be provided to fix or release.

The fixing member 50 may be provided with a locking jaw and a locking groove, a hook and a hook fixing hook or a fixing groove, but is not limited thereto, and encompasses means for fixing the pipe 10 and the insert 20. meaning must be interpreted.

When the fixing member 50 is positioned to fix the insert 20 and the pipe 10 to each other, the insert 20 and the injector 30 are unfixed, and the insert 20 and the pipe ( 10) The insert 20 and the injector 30 may be provided in a fixed form when they are in a mutually unfixed position. In this method, when the locking jaw at one end of the fixing member 50 is out of the locking groove by the user's external force, the locking jaw is fastened to the locking groove at the other end of the fixing member 50, and one end of the fixing member 50 In case the hook is released from the ring or fixing groove, the hook may be provided in the form of being fastened to the hook or fixing groove at the other end, and as an embodiment, the fixing member 50 is supported by the central axis, hinge or support It may be operated in such a way that one side is fixed and the other side is released while rotating or leveraging. At this time, an elastic body such as a spring may be additionally provided so that the fixing member 50 is positioned at a certain position before the user's external force is applied.

When the insert 20 and the pipe 10 are fixed to each other, the insert 20 and the injector 30 are unfixed, and the insert 20 and the pipe 10 are unfixed. The form in which the insert 20 and the injector 30 are fixed when in position may be achieved by interaction of a plurality of components. At this time, the fastening member 50 is further provided with a coupling release means 60, and the coupling release unit 60 is connected to the insert 20 and the pipe 10 when the coupling release unit 60 is located in the first position. ) while moving the fixing member 50 to a fixed state so that the injector 30 can move in translation inside the insert 20, releasing the fastening between the insert 20 and the injector 30, , When the fastening member 60 is located in the second position, the insert 20 and the pipe 10 are moved to a released state so that the insert 20 and the pipe 10 are disengaged from the inside of the insert 20. It operates to fix the insert 20 and the injector 30 so that the injector 30 is fixed.

As an embodiment, the coupling release means 60 is provided in the form of a cam, and a rotation lever 62 capable of rotating the cam 61 by external manipulation is formed on one surface of the cam 61, and the rotation lever 62 ) As the cam 61 is rotated by manipulation, when the rotary lever 62 is located in the first position, the fixing member 50 is placed in an unfixed state through the cam 61, and the inside of the pipe 10 At the same time that the insert 20 is in a relative motion state, the cam 61 releases the fastening between the injector 30 and the insert 20 so that the injector 30 translates inside the insert 20. When the movement is possible and the rotary lever 62 is located in the second position, the insert 20 is moved inside the pipe 10 by placing the fixing member 50 in a fixed state through the cam 61. A form in which the injector 30 is fixed so that the injector 30 does not move forward inside the insert 20 by fixing the injector 30 and the insert 20 to each other while fixing the relative motion. can work as

As a specific embodiment, when the diameter to the outer circumferential surface of the rotatable cam 61 is formed to be non-uniform to rotate the cam 61 in a certain direction, the outer circumferential surface with a long diameter of the cam 61 is fixed to the fixing member 50 ) A pushing force is generated at the portion fixing the pipe 10 and the insert 20, and pressure is applied to the fixing member 50 so that the pipe 10 and the insert 20 are fixed, and vice versa, the cam 61 As the outer circumferential surface having a short diameter of ) is located at the portion of the fixing member 50 fixing the insert 20 and the injector 30, the pressure pressing the portion fixing the insert 20 and the injector 30 disappears. It may be implemented in such a way that the fixation of the insert 20 and the injector 30 is released.

The string 45 is inserted into the hollow elastic member insertion part 42 of the pouch 40 and is used when tissue is removed to the outside of the human body. The string 45 may be made of a material such as cotton, nylon, silk or synthetic resin. The string 45 is exposed to the outside through the pipe 10 in a state of being inserted into the elastic member insertion portion 42 into which the elastic member 21 of the inlet portion 41 of the pouch 40 is inserted. When the tissue is extracted by pulling the end of the string 45, the entrance 41 of the pouch 40 is tightened, the entrance is blocked, and the string 45 is pulled to remove the tissue from the outside of the human body. plays a role in extraction.

Hereinafter, with reference to FIGS. 8 to 14 , the operating state of the tissue extraction device 1 for laparoscopic surgery according to the present invention described above will be described in detail.

First, the insert 20 is inserted into the hollow portion of the pipe 10, and the injector 30 is inserted into the hollow portion of the insert 20 and assembled and prepared. At this time, the pouch 40 is accommodated inside the insert 20 in a folded state after being rolled in a state fitted to the elastic member 21 .

Then, the insert 20 is inserted into the pipe 10 as an assembly in a fastened state with the injector 30 (see FIG. 8).

Next, when the cam 61 of the disengagement means 60 is placed in the first position while the pipe 10, the insert 20, and the injector 30 are inserted and coupled, the second hook 52b ) is lifted up from the second fixing groove 51b of the fixing member 50 by the cam 61 and becomes a releaseable state, and the first hook 52a is fixed to the first fixing groove 51a. It becomes a fastened state as much as possible. (See Fig. 9)

Accordingly, the pipe 10 and the insert 20 are fastened to each other, but the injector 30 is detachable from the insert 20, and the restraint of the injector 30 is released, thereby enabling translational motion. see 10)

Next, when the injector 30 is moved forward after retracting (see FIG. 11), the volume of the internal space of the injector 30 is filled with air, and the filled air is delivered to the air injection passage 43 via the air injection tube 44. As a result, the pouch 40 is restored to its original form and unfolded. (See FIG. 12)

In this way, through repetitive pumping of the injector 30, the pouch 40 is in a fully unfolded state so that the tissue can be extracted and contained therein.

Then, after the air injection is completed, the rotary lever 62 of the coupling release means 60 is rotated from the first position to the second position (see FIG. 13).

Then, when the rotary lever 62 is rotated to be positioned in the second position, the cam 61 rotates and the small diameter part of the cam 61 comes to the position of the second hook 52b, and eventually the second hook 52b As ) is restored to its original position by elasticity and descends, it is caught and fixed in the second fixing groove 51b, so that the insert 20 and the injector 30 are fastened in a combined assembly state (see FIG. 14).

At this time, the large-diameter portion of the cam 61 comes to the position of the first hook 52a, and eventually the first hook 52a is separated from the first fixing groove 51a and lifted to become detachable. That is, as the assembly of the insert 20 and the injector 30 is separated from the pipe 10 and becomes retractable, free translational movement is possible, and tissue can be excised and collected while laparoscopic surgery is performed. .

As described above, the optimum embodiment has been disclosed in the drawings and specifications. Although specific terms are used herein, they are only used for the purpose of describing the present invention and are not used to limit the meaning or the scope of the present invention described in the claims. Therefore, those of ordinary skill in the art will understand that various modifications and equivalent other embodiments are possible therefrom. Therefore, the true technical protection scope of the present invention should be determined by the technical spirit of the appended claims.

1: tissue extraction device 10: pipe
11: first handle 20: insert
21: elastic member 22: check valve
23: incision 30: injector
31: second handle 40: pouch
41: inlet portion 42: elastic member insertion portion
43: air injection passage 44: air injection tube
45: string 50: fixed member
51: fixing groove 51a: first fixing groove
51b: second fixing groove 52: hook (protrusion)
52a: first hook 52b: second hook
60: disengagement means 61: cam
62: rotary lever

Claims (12)

A hollow pipe with an empty inside and one side open and the other side having a first handle;
An insert with an empty interior, an elastic member installed at one end, and provided for translational movement inside the pipe;
An injector that is inserted into the insert and performs a translational motion; and
An upper surface is provided with an open inlet to contain the excised tissue, the inlet is supported by the elastic member, an air injection passage is provided along a circumferential surface excluding the inlet, and the injector advances in the insert. A tissue removal device for laparoscopic surgery, comprising: a pouch whose shape is restored while expanding as air is injected through the air injection passage. According to claim 1,
Inside the insert,
A tissue removal device for laparoscopic surgery, characterized in that it is provided with a check valve for controlling air flow so that air passes in only one direction. According to claim 2,
The check valve is
A tissue removal device for laparoscopic surgery, characterized in that it is formed in a conical shape with a hollow inside and incised lines are formed at regular intervals on an inclined outer circumferential surface. According to claim 1,
On one side of the pouch,
An air injection tube is provided to communicate with the air injection passage,
The air injection tube has one end inserted into the air injection passage, and the other end inserted into one end of the insert. According to claim 1,
At the other end of the pipe,
A tissue removal device for laparoscopic surgery, characterized in that a fixing member capable of being fixed or released by a user's operation is installed to fix or release the insert and the pipe to each other. According to claim 5,
The fixing member is
Laparoscopic surgery, characterized in that the insert and the injector are released when the insert and the pipe are fixed to each other, and the insert and the injector are fixed when the insert and the pipe are at a position to release the fixing to each other. Tissue extraction device for use. According to claim 5,
An additional means for releasing the engagement is provided,
When the disengagement unit is located at the first position, the injector moves in a fixed state so that the pipe and the insert are coupled and fixed so that the injector can translate in the insert and the disengagement unit. When the fastening between the injectors is released, and the fastening member is moved to a released state so that the pipe and the insert are disengaged when the fastening releasing unit is located at the second position, the insert and the insert are fixed to the injector inside the insert. Tissue extraction device for laparoscopic surgery, characterized in that for fixing the injector. According to claim 5 or 6,
The fixing member is
Laparoscope characterized in that it is operated through a switch or a rotary lever that the user can operate from the outside, and the fixing groove and hook or fixing groove and protrusion are fixed by catching or fitting and released by catching or releasing. Surgical tissue removal device. According to claim 7,
The fastening means,
It is provided in the form of a cam and a rotary lever capable of rotating the cam by external manipulation is formed on one surface of the cam. As the cam is rotated by the manipulation of the rotary lever, when the rotary lever is located in the first position, the cam By positioning the fixing member in an unfixed state, the insert is capable of relative movement inside the pipe, and at the same time, the cam releases the fastening between the injector and the insert so that the injector is capable of translational movement inside the insert, ,
When the rotation lever is located in the second position, the fixing member is placed in a fixed state through a cam to prevent the insert from moving relative to the inside of the pipe and at the same time the cam fixes the fastening between the injector and the insert. Tissue removal device for laparoscopic surgery, characterized in that for fixing the injector so that it does not translate inside the insert. According to claim 1,
The elastic member,
Tissue extraction device for laparoscopic surgery, characterized in that one side portion meeting while being gathered from both sides is cut. According to claim 1,
In the pouch,
Tissue removal device for laparoscopic surgery, characterized in that provided with a string exposed to the outside through the pipe. According to claim 11,
The string is
Tissue removal device for laparoscopic surgery, characterized in that exposed to the outside through the pipe in a state of being inserted into the elastic member insertion part into which the elastic member of the pouch entrance is inserted.

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