KR20200097163A - Device for removal during minimally invasive surgery - Google Patents

Abstract

The present invention relates to a device for removing a resected tissue for a minimally invasive surgery. The device for removing a resected tissue for a minimally invasive surgery comprises: an auger screw transferring the resected tissue; a crushing blade crushing the resected tissue while rotating integrally with the auger screw; a cover unit accommodating the auger screw and the crushing blade; and a motor driving the auger screw and the crushing blade, wherein the crushed resected tissue is transferred by the auger screw and removed to the outside. According to embodiments of the present invention, provided is an extracorporeal transfer device for the resected tissue that can safely and effectively discharge hard or large amounts of tissue out of a body.

Description

Resected tissue removal device for microinvasive surgery{DEVICE FOR REMOVAL DURING MINIMALLY INVASIVE SURGERY}

The present invention relates to an apparatus for removing resected tissue for microinvasive surgery. In detail, the present invention relates to an apparatus for removing resected tissue for microinvasive surgery that safely and effectively discharges the resected tissue during microinvasive surgery such as laparoscopy, thoracoscopic or robotic surgery.

In modern clinical medicine, where most of the surgery is replaced by microinvasive surgery such as laparoscopy, thoracoscopic or robotic surgery, a reliable instrument is required to remove the resected tissue out of the body. Currently, specimens used for laparoscopic surgery are subject to a certain amount of force or when the volume of the excised tissue is large, the bag bursts and the excised tissue is scattered into the body, or when the excised tissue is hard, the trocar is The incision in the area to be inserted had to be expanded.

Moreover, if the excised tissue was a malignant tumor, there was a risk that the malignant tumor would spread into the body. Even if it is not a malignant tumor, if the tissue is large, there is a risk that a portion of the tissue may be scattered into the abdominal or thoracic cavity or remain in the body while rotating in the abdominal cavity or thoracic cavity while pulling and rotating the tissue in the direction of the trocar.

Accordingly, there is a growing need for a device capable of safely and effectively discharging the excised tissue out of the body.

Korean Utility Model Registration Publication No. 20-0465473 (2013.02.14)

According to embodiments of the present invention, it is intended to provide an apparatus for removing resected tissue for microinvasive surgery that can safely and effectively discharge hard tissue or a large amount of tissue out of the body.

In addition, it is intended to provide a resected tissue removal device for microinvasive surgery capable of discharging hard tissue or a large amount of tissue out of the body without unnecessarily expanding the incision site for insertion of the trocar.

According to an embodiment of the present invention, an auger screw for transferring an ablated tissue, a grinding blade for pulverizing the tissue by rotating integrally with the auger screw, a cover part accommodating the auger screw and the grinding blade, and the An auger screw and a motor for driving the crushing blade; including, and the pulverized tissue is transported by the auger screw to be removed to the outside, and provides a resected tissue removal device for microinvasive surgery.

In addition, it may include a collection unit for collecting the crushed and transferred tissue.

In addition, the cover portion may be transparent.

In addition, the cover portion may be inserted into the trocar formed of a transparent material.

In addition, the grinding blade may be transferred to the auger screw while the grinding blade is formed in a spiral shape and the tissue is crushed by the grinding blade.

In addition, when the tissue is pulverized before the tissue is pulverized, it may further include a receiving portion for preventing the tissue from scattering to the surroundings.

In addition, the receiving portion may include a rail portion including a groove portion for fixing the shaft, and the connection portion may be connected to the groove portion.

According to embodiments of the present invention, it is possible to minimize the risk of normal organs when the excised tissue is transferred out of the body.

In addition, excised tissues can be safely and effectively discharged.

In addition, a grinding blade for reducing the size of a hard tissue or a bulky tissue may be operated inside the cover part.

In addition, due to the transparent cover, it is possible to monitor the transfer process and discharge process of the tissue.

1 is a view showing a resected tissue extracorporeal transfer device according to an embodiment of the present invention
2 is a view showing the internal structure of the resected tissue extracorporeal transfer apparatus according to an embodiment of the present invention
Figure 3 is a view showing the inside of the cover of the resected tissue extracorporeal transfer device according to an embodiment of the present invention
Figure 4 is a view showing the operation of the conventional excision tissue transfer device
5 is a view showing the operation of the excised tissue extracorporeal transfer device according to an embodiment of the present invention

Hereinafter, a specific embodiment of the present invention will be described with reference to the drawings. The following detailed description is provided to aid in a comprehensive understanding of the methods, devices, and/or systems described herein. However, this is only an example and the present invention is not limited thereto.

In describing the embodiments of the present invention, when it is determined that a detailed description of known technologies related to the present invention may unnecessarily obscure the subject matter of the present invention, a detailed description thereof will be omitted. In addition, terms to be described later are terms defined in consideration of functions in the present invention and may vary according to the intention or custom of users or operators. Therefore, the definition should be made based on the contents throughout this specification. The terms used in the detailed description are only for describing embodiments of the present invention, and should not be limiting. Unless explicitly used otherwise, expressions in the singular form include the meaning of the plural form. In this description, expressions such as "comprising" or "feature" are intended to refer to certain features, numbers, steps, actions, elements, some or combination thereof, and one or more It should not be construed to exclude the presence or possibility of other features, numbers, steps, actions, elements, any part or combination thereof.

In addition, directional terms such as “one side”, “the other side”, “top”, “bottom” and the like are used in connection with the orientation of the disclosed drawings. Since the constituent elements of the embodiments of the present invention may be positioned in various orientations, the directional terminology is used for illustrative purposes, but is not limited thereto.

1 is a view showing an apparatus for removing resected tissue for microinvasive surgery according to an embodiment of the present invention, and FIG. 2 is a diagram showing an internal structure of an apparatus for removing resected tissue for microinvasive surgery according to an embodiment of the present invention. It is a drawing.

The excised tissue extracorporeal transfer device 10 according to an embodiment of the present invention may include a cover part 100, an auger screw 120, a grinding blade 130, a motor 200, and a collection part 300. .

The cover part 100 may be a part inserted into the trocar. In the cover portion 100, an auger screw 120 to be described later, a grinding blade 130 connected to the auger screw 120, and the like may be accommodated. Since the cover portion 100 is present, the auger screw 120 or the grinding blade 130 may not directly contact the trocar, and thus rotation may not be disturbed. That is, the cover part 100 may serve to assist in the normal operation of the resected tissue removal apparatus 10 for microinvasive surgery according to an embodiment of the present invention.

The trocar is a trocar and may be a part used to perform laparoscopic surgery of a patient. The trocar 100 may serve to provide a space so that a cannula, a grasper, and scissors can be operated inside the body. The trocar is formed in a circular shape, so that the skin or other tissues around the trocar do not come into contact with the wound. In addition, the trocar may also serve as a passage through which gas or the like enters or discharges. However, it is not limited thereto.

The cover part 100 has the shape of a hollow tube, so that other medical devices described above may be injected. At least a portion of the cover part 100 may be formed in a circular shape. This is because the cover part 100 may be inserted into the abdominal cavity through the abdomen of the patient, and thus an unintended wound may occur if there is an angular portion.

The apparatus for removing resected tissue for microinvasive surgery according to an embodiment of the present invention may be inserted into the inner side of the cannula as well as the trocar. However, if the cannula is disposed, the inner diameter can be unnecessarily reduced, so the cannula is not necessarily required. The cannula may be a tube that can be inserted into the body.

The cover part 100 may be transparent. Therefore, even if the auger screw 120 and the grinding blade 130 are disposed inside the cover part 100, the cutting and conveying process can be visually confirmed, thereby improving safety.

Likewise, it may be preferable that the trocar into which the cover part 100 of the resected tissue removal apparatus 10 for microinvasive surgery according to an embodiment of the present invention is inserted is formed of a transparent material.

The auger screw 120 may include a shaft 121 and a transfer unit 122. The transfer part 122 may be a part that is connected to the shaft 121 and transfers the excised and pulverized tissue when the shaft 121 rotates. The transfer part 122 may be formed in a spiral shape around the shaft 121. In detail, the conveying part 122 of the auger screw 120 may have a spiral curved surface around the axis 121 disposed at the center. The spiral curved surface may mean a shape formed by spirally rotating a straight line around the axis 121. The operating principle of the auger screw 120 is similar to that of Archimedes' spiral pump. Accordingly, as the shaft 121 rotates, the spiral transfer unit 122 is rotated, and the pulverized ablative tissue can be transferred to the rear end of the auger screw 120.

A grinding blade 130 may be connected to the front end of the auger screw 120. The grinding blade 130 is to remove the stunned tissue without spillage of tissue such as a phenomenon in which tissue scatters around the tissue when the tissue cut to a certain size is discharged through the inside of the cover unit 100 Can be formed.

The crushing blade 130 may crush the patient's tissue accommodated in the receiving part 150. The operation of the grinding blade 130 is not limited depending on the presence or absence of the receiving part 150. The receiving part 150 may be connected to the cover part 100 to accommodate the excised tissue. The receiving unit 150 may be a portion formed to accommodate tissues that have been crushed to the periphery or tissues that have been resected to a predetermined size to prevent scattering of blood and that the tissues or blood that has been crushed to the outside are not spattered. Therefore, it may be desirable to crush the tissue through the crushing blade 130 after receiving the tissue having the receiving unit 150 disposed and pre-dissected to a predetermined size in the receiving unit 150.

The receiving unit 150 is a part that accommodates a tissue that has been excised in advance, and may be a separate device from the excised tissue extracorporeal transfer device 10 according to an embodiment of the present invention. The receiving part 150 may be a laparoscopic bag. However, it is not limited thereto, and there is no limit to the type of the accommodation unit 150.

The shape of the grinding blade 130 is not limited to those shown in FIGS. 2, 3 and 5. An appropriate shape may be selected, and since the auger screw 120 is detachable, the shape may be appropriately changed and used.

The grinding blade 130 may be spiral. Accordingly, when the tissue is crushed through the crushing blade 130, it may be naturally moved toward the transfer part 122 of the auger screw 120.

The crushing blade 130 may finely crush a tissue having a predetermined size that is excised in advance, and transfer it through the auger screw 120 to be processed. Conventionally, when a tissue sample is collected, a force of more than a certain amount is applied and the excised tissue is often scattered. In addition, when the resected tissue is hard, a method of cutting the area into which the trocar is inevitable has been used to widen the area into which the trocar is inserted. These limitations have a high risk of metastasis in the case of malignant tumors. Therefore, in the case of using the excised tissue extracorporeal transfer device 10 according to an embodiment of the present invention, when the crushing blade 130 crushes the tissue, there is no need to unnecessarily expand the incision, the receiving part 150, etc. It can be prevented from scattering to the outside.

The collection unit 300 may be a part that accommodates the crushed and transferred tissue. A plurality of collection units 300 may be formed, and a plurality of collection units 300 may be formed in various sizes. What is shown in Fig. 1 is only the ablated tissue transfer device 10 according to an embodiment of the present invention, but is not limited thereto.

The collecting part 300 and the cover part 100 accommodating the auger screw 120 and the grinding blade 130 may be connected to the main body 400 as shown in FIG. 1. However, it is not limited thereto. Accordingly, the collection unit 300 may be directly connected to the rear end of the auger screw 120. When the body 400 is formed, it may be formed in a shape that is convenient to hold by hand.

3 is a view showing the inside of the cover portion of the resected tissue extracorporeal transfer apparatus according to an embodiment of the present invention.

The motor 200 may serve to provide rotational force to the auger screw 120 and the grinding blade 130.

As the auger screw 120 rotates, the tissue disposed on the transfer unit 122 may be transferred from the front end to the rear end. When the transfer unit 122 is formed in a spiral curve, the tissue may be transferred from the front end to the rear end or from the rear end to the front end depending on the rotation direction, but in this specification, based on rotation so that the tissue is transferred from the front end to the rear end. Explain.

The motor 200 may be formed to adjust the number of rotations of the auger screw 120 so that the rotational speed at which the excised and pulverized tissue is transferred is changed as needed. This may be controlled by a separate control unit (not shown).

The grinding blade 130 may be controlled separately from the auger screw 120. This may be to prevent the case that the crushing blade 130 rotates in the air even after the pulverization of the tissue is completed, when the tissue is not transferred to the rear end of the auger screw 120 or the collection unit 300 or the like. It goes without saying that the number of revolutions of the grinding blade 130 can also be controlled. However, the present invention is not limited thereto, and the grinding blade 130 and the auger screw 120 may be simultaneously controlled as needed.

The shaft 121 of the auger screw 120 may include a connecting portion (121a in FIG. 5 ). The connection part 121a may be a part connected to the receiving part 150 to be described later. In detail, the connection part 121a may be fitted and connected to the rail part 151 and the groove part 151a included in the receiving part 150. This will be described later.

4(a), 4(b), and 4(c) are views showing a conventional tissue transfer device, and FIGS. 5(a), 5(b), and 5(c) are one of the present invention. A view showing the operation of the excised tissue extracorporeal transfer device 10 according to the embodiment.

In the conventional tissue transfer apparatus, the tissue t rises while the forceps 1 picks up the excised tissue t and rotates. At this time, the entire tissue (t) cannot enter the inside of the tube (2), so only the tissue (t) of a certain size is introduced into the tube (2). At this time, the part inserted into the tube 2 and the part connected to the external tissue expand and break, and at this time, blood or small tissue may be scattered around.

Resected tissue extracorporeal transfer device 10 according to an embodiment of the present invention can simply use the auger screw 120 to transfer the tissue when the predetermined size is smaller than the area of the inner hollow portion of the cover portion 100. .

On the other hand, in the case of the tissue T that is larger than the area of the inner hollow part of the cover part 100, as shown in Fig. 5(a), the tissue T is excised after receiving the resected tissue T in the receiving part 150 The cover part 100 can be approached to (T). Thereafter, as shown in FIG. 5(b), a part of the ablated tissue T may be inserted into the cover 100 by stabbing the connection part 121a with the ablated tissue T. At this time, the crushing blade 130 rotates to crush the ablated tissue T, and the pulverized tissue Ta may move upward (moving from the front end of the auger screw to the rear end) based on FIG. 5. In detail, when the crushing blade 130 crushes the tissue, the naturally excised tissue Ta may be seated on the transfer part 122 of the auger screw 120. The seated tissue Ta may be transferred from the front end to the rear end of the auger screw 120 by the auger screw 120.

Thereafter, as shown in FIG. 5(c), the connection part 121a may be connected to the rail part 151. In more detail, since the connection part 121a may be connected to the groove part 151a of the rail part 151, the shaking of the auger screw 120 may be prevented. The connection portion 121a and the groove portion 151a are connected to each other, so that the resected tissue extracorporeal transfer device 10 according to an embodiment of the present invention can be fixed, thereby ensuring safety of the procedure. When the tissue Ta is transferred to the rear end of the auger screw 120, the operator can collect the tissue sample through the collection unit 300 or the like.

The receiving part 150 may include a rail part 151 including a groove part 151a to which the axis of the auger screw 120 may be fixed. The groove portion 151a may be formed in a notch shape, and the notch shape may be formed to have a predetermined length, so that the positions at which the shaft 121 can be fixed may be varied. In addition, the groove portion 151a is formed of a hard material, so that when the shaft 121 is fitted, it can be prevented from being torn or penetrated by the connection portion 121a.

The rail part 151 may guide the shaft 121 of the auger screw 120. Due to the rail unit 151, shaking of the auger screw 120 can be prevented, so that a user or a practitioner can prevent unintended accidents when using the ablated tissue extracorporeal transfer device 10 according to an embodiment of the present invention. I can.

The rail part 151 may be formed to be flexible. When the rail part 151 is formed in a soft manner, when the rail part 151 moves inside or outside the body, it may touch other tissues and cause a wound or the movement of the rail part 151 may not be limited. That is, the groove portion 151a may be formed to be rigid, and a portion of the rail portion 151 excluding the groove portion 151a may be formed to be flexible. However, it is not limited thereto.

Although the exemplary embodiments of the present invention have been described in detail above, those of ordinary skill in the art to which the present invention pertains will understand that various modifications may be made to the above-described embodiments without departing from the scope of the present invention. . Therefore, the scope of the present invention is limited to the described embodiments and should not be determined, and should not be determined by the claims to be described later, as well as those equivalent to the claims.

10: transfer device
100: cover
120: auger screw
121: axis
122: transfer unit
130: grinding blade
200: motor
300: collection section

Claims (7)

Auger screw for transferring the ablated tissue;
A grinding blade that rotates integrally with the auger screw and crushes the ablated tissue;
A cover part accommodating the auger screw and the grinding blade, and
Includes; a motor for driving the auger screw and the grinding blade,
The pulverized resected tissue is transported by the auger screw to be removed to the outside.
The method according to claim 1,
Resected tissue removal device for microinvasive surgery comprising; a collection unit for collecting the tissue that has been crushed and transferred.
The method according to claim 1,
The cover part is transparent, a device for removing resected tissue for microinvasive surgery.
The method according to claim 1,
The cover portion is inserted into the trocar having a transparent material, microinvasive surgical resection tissue removal device.

The method according to claim 1,
The crushing blade is formed in a spiral shape and transferred to the auger screw while the tissue is crushed by the crushing blade, a resected tissue removal device for microinvasive surgery.
The method according to claim 1,
The shaft of the auger screw includes a connecting portion that can be connected to a receiving portion for preventing the tissue from scattering to the surroundings when the tissue is crushed before being crushed, a resected tissue removal device for microinvasive surgery.
The method of claim 6,
The receiving portion includes a rail portion including a groove portion capable of fixing the shaft,
The connection part is connected to the groove, a tissue removal device for microinvasive surgery.

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