KR102304335B1 - Tissue dissection device - Google Patents

Abstract

An embodiment includes a first jaw; a second jaw comprising an ablation portion comprising a protrusion to ablate tissue and rotatable relative to the first jaw below the first jaw; and a signal portion providing a signal to the tissue and receiving a reflected signal and disposed on the second jaw, the signal portion moving along a longitudinal direction of the ablation portion, wherein the first jaw is perpendicular to the signal portion non-directionally overlapping, wherein the second jaw overlaps with the signal portion in the vertical direction.

Description

TISSUE DISSECTION DEVICE

Embodiments relate to tissue ablation devices.

Medically, surgery refers to the treatment of diseases by cutting, slitting, or manipulating the skin, mucous membranes, or other tissues using a medical machine. Among these surgeries, open surgery corresponds to an operation in which the skin of the abdominal cavity or the face is divided and opened to treat, shape, or remove organs, etc. therein.

When performing such open surgery, the skin is incised to form a predetermined space between the skin and the tissue, and then the surgical action is performed through the space, so there is a problem that there are many wounds and the healing after surgery is slow. In recent years, laparoscopic surgery has been attracting attention as an alternative to this.

Laparoscopic surgery is a method of performing surgery while observing the surgical site in the abdominal cavity by making a small hole in the patient's surgical site and then inserting a laparoscope through this hole. Laparoscopic surgery has been rapidly developed since cholecystectomy in 1990 because of its many advantages compared to conventional open surgery, such as shorter recovery period, small scarring, reduced pain, and reduced risk of infection.

Currently, it is applied to almost all surgical fields such as colorectal cancer surgery, gastric cancer surgery, hernia, liver resection, and thyroid surgery, accounting for about 20-40% of all surgeries, and in the future, it will account for 80% of all surgeries. is expected to be

The laparoscope is one of the equipment for diagnosing the internal organs of the body, and it is generally configured to insert a device equipped with a small camera into the body to observe image information detected from the small camera through a monitor installed outside.

In laparoscopic surgery, the location and size of blood vessels inside the tissue to be excised varies greatly depending on the patient, and the information is also unknown. Therefore, there is a high possibility of unintentional vascular resection during tissue resection.

If a blood vessel is resected during laparoscopic surgery, considerable time and effort is consumed to prevent bleeding, which can worsen the condition of the patient and doctor, and in severe cases, it can be a fatal problem that can lead to death due to massive bleeding. have.

Various studies are being conducted to solve this problem, but rather than research to prevent unintentional vasectomy itself during laparoscopic tissue resection, it is focused on the development of a seamless solution to reduce the problem by hemostasis with energy such as ultrasound after vascular resection is performed. is ending

In addition, since the location of blood vessels passing through the tissue differs from patient to patient and their size is also different, it cannot be said that information on the presence or absence and size of blood vessels inside the tissue can be accurately represented only by the intensity information of the optical signal passing through the tissue. , if the device malfunctions, it may pose a significant risk to the patient during surgery. In the actual surgical procedure, the probability of unintentional vasectomy is about 3%, of which the probability of fatal damage is about 18%. it is becoming.

Accordingly, there is a need for a tissue resection apparatus such as a laparoscope to easily detect blood vessels in a tissue.

The embodiment provides a tissue resection apparatus for easily detecting a blood vessel inside a tissue to be resected.

In addition, there is provided a tissue resection apparatus for providing internal imaging using the naked eye or an optical signal by disposing an optical fiber on one side for accurate excision.

In addition, there is provided a tissue resection device that prevents damage due to unintentional vascular resection during various types of surgery, such as laparoscopic surgery, thoracoscopic surgery, robotic surgery, or laparotomy.

The problem to be solved in the embodiment is not limited thereto, and it will be said that the purpose or effect that can be grasped from the solution means or embodiment of the problem described below is also included.

An ablation apparatus according to an embodiment of the present invention includes a first jaw; a second jaw comprising an ablation portion comprising a protrusion to ablate tissue and rotatable relative to the first jaw below the first jaw; and a signal portion providing a signal to the tissue and receiving a reflected signal and disposed on the second jaw, the signal portion moving along a longitudinal direction of the ablation portion, wherein the first jaw is perpendicular to the signal portion direction, the second jaw overlaps the signal part in the vertical direction.

The second jaw may include a recess in which the cut portion is seated and a protrusion positioned at one side, and the signal unit may be disposed on the protrusion.

The signal unit may include: a first signal region overlapping the protrusion in the vertical direction; and a second signal region overlapping the cut portion in the vertical direction.

The first jaw may include a first region overlapping the cut portion in the vertical direction, and an outer surface of the first jaw may have a first curvature in the first region.

An outer surface of the second jaw may have a second curvature below the first area, and an outer surface of the signal unit may have a third curvature below the first area.

The first curvature, the second curvature, and the third curvature may be the same.

The first jaws extend in the longitudinal direction and include first and second outer surfaces facing each other, and the second jaws extending in the longitudinal direction and having first and second edge surfaces facing each other Including, a first separation distance between the first outer surface and the first edge surface is smaller than a second separation distance between the second outer surface and the second edge surface, and the signal unit and the second outer surface It may be disposed between the second edge surfaces.

The signal part may move in the longitudinal direction along between both ends of the cut part.

The signal unit may include; a transmitting unit through which the signal moves, and a transceiver for emitting a signal moving from the transmitting unit to the tissue and receiving the reflected signal.

The transceiver unit includes a mirror for reflecting the signal toward the tissue; and a lens unit emitting the tissue reflected from the mirror toward the tissue.

The signal unit may further include a reflective member positioned at an end spaced apart from the transmission unit and the transceiver, and the reflective member may reflect the signal emitted from the transceiver to the tissue.

The signal unit may include a first signal unit and a second signal unit, and the first signal unit and the second signal unit may move in the longitudinal direction in different ranges with respect to the tissue.

The first signal part may be disposed between the second signal part and the first jaw, and a length of the first signal part in the longitudinal direction may be smaller than a length in the longitudinal direction of the second signal part.

A tissue ablation apparatus according to an embodiment includes an ablation apparatus for ablating tissue; an extension connected to the ablation device; and an operation member for manipulating the operation of the ablation device; a first jaw; a second jaw comprising an ablation portion comprising a protrusion to ablate tissue and rotatable relative to the first jaw below the first jaw; and a signal portion providing a signal to the tissue and receiving a reflected signal and disposed on the second jaw, the signal portion moving along a longitudinal direction of the ablation portion, wherein the first jaw is perpendicular to the signal portion direction, the second jaw overlaps the signal part in the vertical direction.

A tissue ablation system according to an embodiment includes a tissue ablation device comprising an ablation device for ablating tissue; an image generator providing a signal to the tissue resection device and outputting an image signal by receiving a signal reflected from the tissue; and a display unit for receiving and displaying the image signal, wherein the ablation device includes: a first jaw; a second jaw comprising an ablation portion comprising a protrusion to ablate tissue and rotatable relative to the first jaw below the first jaw; and a signal portion providing a signal to the tissue and receiving a reflected signal and disposed on the second jaw, the signal portion moving along a longitudinal direction of the ablation portion, wherein the first jaw is perpendicular to the signal portion direction, the second jaw overlaps the signal part in the vertical direction.

According to the embodiment, a tissue resection apparatus for easily detecting blood vessels inside a tissue to be resected may be implemented.

In addition, it is possible to fabricate a tissue ablation device that provides visual or internal imaging using an optical signal by disposing an optical fiber on one side for accurate excision.

In addition, it is possible to manufacture a tissue resection device that prevents damage due to unintentional vascular resection during various types of surgery, such as laparoscopic surgery, thoracoscopic surgery, robotic surgery, or open surgery.

Various and advantageous advantages and effects of the present invention are not limited to the above, and will be more easily understood in the course of describing specific embodiments of the present invention.

1 is a perspective view of an ablation device according to a first embodiment;
2 is an exploded perspective view of the ablation device according to the first embodiment;
3 is a top view of the ablation device according to the first embodiment;
4 is a side cross-sectional view of the ablation device according to the first embodiment;
5 is a side cross-sectional view viewed from a different direction from FIG.
6 is a front view of the ablation device according to the first embodiment;
7 is a top view and a bottom view of the first jaw;
8 and 9 are views for explaining the operation of the signal transmission member,
10 is a top view of an ablation device according to a second embodiment;
11 is an enlarged view of part A in FIG. 9;
12 is a top view of an ablation device according to a third embodiment;
13 is an enlarged view of part B in FIG. 12;
14 is a top view of an ablation device according to a fourth embodiment;
15 is an enlarged view of part C in FIG. 14;
16 is a conceptual diagram of a tissue ablation apparatus according to an embodiment;
17 is a block diagram of a tissue ablation system according to an embodiment.

Since the present invention can have various changes and can have various embodiments, specific embodiments are illustrated and described in the drawings. However, this is not intended to limit the present invention to specific embodiments, and it should be understood to include all modifications, equivalents and substitutes included in the spirit and scope of the present invention.

Terms including an ordinal number such as second, first, etc. may be used to describe various elements, but the elements are not limited by the terms. The above terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the second component may be referred to as the first component, and similarly, the first component may also be referred to as the second component. and/or includes a combination of a plurality of related listed items or any of a plurality of related listed items.

When a component is referred to as being “connected” or “connected” to another component, it is understood that the other component may be directly connected or connected to the other component, but other components may exist in between. it should be On the other hand, when it is said that a certain element is "directly connected" or "directly connected" to another element, it should be understood that no other element is present in the middle.

The terms used in the present application are only used to describe specific embodiments, and are not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In the present application, terms such as “comprise” or “have” are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, but one or more other features It should be understood that this does not preclude the existence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present application. does not

Hereinafter, the embodiment will be described in detail with reference to the accompanying drawings, but the same or corresponding components are given the same reference numerals regardless of reference numerals, and overlapping descriptions thereof will be omitted.

1 is a perspective view of an ablation apparatus according to a first embodiment, and FIG. 2 is an exploded perspective view of an ablation apparatus according to the first embodiment.

1 and 2 , the ablation apparatus 100 according to the first embodiment may include a first jaw 110 , a second jaw 120 , and a signal unit 130 .

First, the first jaw 110 may extend in a first direction (X-axis direction). Here, the first direction (X-axis direction) may be the same as the extension line of the signal unit 130 to be described later in the extension direction of the first jaw 110, and may be used interchangeably with 'length direction' hereinafter. The second direction (Y-axis direction) is a direction perpendicular to the first direction (X-axis direction). The second direction (Y-axis direction) may be a direction from the first jaw toward the signal unit. The third direction (Z-axis direction) may be a direction perpendicular to the first direction (X-axis direction) and the second direction (Y-axis direction). In an embodiment, the third direction (Z-axis direction) may correspond to a direction from the second jaw toward the first jaw, and may be used interchangeably with a 'vertical direction'.

The first jaw 110 may be positioned on top of the ablation device 100 . In addition, a portion of the first jaw 110 may have a curvature. In particular, it may have a curvature in a first region to be described later. This will be described later.

In addition, the first jaw 110 may have a groove 110a on one side. By this configuration, a view of the tissue located at the lower end of the first jaw 110 can be easily secured.

The second jaw 120 may be located under the first jaw 110 . The second jaw 120 may be coupled to the first jaw 110 . In an embodiment, the first jaw 110 or the second jaw 120 may be rotationally movable. And by the above-described rotational movement, the first jaw 110 and the second jaw 120 may hold the tissue that may be disposed between the first jaw 110 and the second jaw 120 . In addition, the first jaw 110 and the second jaw 120 can be easily excised at a desired position by the protrusion 121a of the second jaw 120 . And the operation for performing the ablation can be made by the operation member to be described later, a description thereof will be described later.

In addition, the second jaw 120 may include a recess RS1 and a cutout portion 121 seated in the recess RS1 .

The cut portion 121 may include a protrusion 121a at an upper portion facing the first jaw 110 . If there is no tissue between the first jaw 110 and the second jaw 120 , the first jaw 110 may come into contact with the protrusion 121a by rotation of the first jaw 110 . In an embodiment, the protrusions 121a may be plural if they protrude upward.

In addition, the cut portion 121 may include a sliding portion 121b protruding downward. The sliding part 121b may be seated in the recess RS1. According to this configuration, the cut-out portion 121 is slidably coupled with the second jaw 120 within the second jaw 120 to improve the mutual coupling force.

The recess RS1 may include a sliding groove RS1a that is a groove capable of being coupled to the sliding part 121b. Accordingly, the sliding portion 121b of the cut-out portion 121 may slide into the recess RS1 along the sliding groove RS1a. Accordingly, separation and coupling of the excision portion 121 may be easily performed, and cleaning may be performed upon separation.

The recess RS1 may be formed from a portion to the end surface 120k of the second jaw 120 . In other words, the recess RS1 may be formed to extend along the extending direction of the first jaw 110 . In addition, the recess RS1 may correspond to the shape of the cut portion 121 .

In addition, the recess RS1 may be located on one side of the second jaw 120 , and the protrusion 120a may be located on the other side of the second jaw 120 by the recess RS1 . Accordingly, both the recess RS1 and the protrusion 120a may extend in the longitudinal direction.

Specifically, the second jaw 120 may include a protrusion 120a located on one side. The protrusion 120a may be adjacent to the recess RS1 . A signal unit 130 to be described later may be disposed on the protrusion 120a. That is, the signal unit 130 may be disposed on the second jaw 120 . Accordingly, the signal unit 130 may be spaced apart from the excision unit 121 . With this configuration, the ablation apparatus 100 according to the embodiment can easily block damage to the signal part 130 by the ablation part 121 .

The signal unit 130 may move in an extension direction (or a longitudinal direction) of the excision unit 121 , for example, in a first direction (X-axis direction). In addition, the signal unit 130 irradiates a signal (eg, an optical signal, which is hereinafter used interchangeably with terms such as optical signal and light) toward the tissue held by the first jaw 110 and the second jaw 120 . can In other words, the signal unit 130 may perform line scanning for providing an optical signal to the tissue and receiving the reflected optical signal. Accordingly, an image generating unit, which will be described later, may provide an image of an excised or non-ablated site in a tissue by using an optical signal reflected by line scanning.

The signal unit 130 may be moved back and forth in the longitudinal direction by a manipulation member to be described later. For example, the operation member to be described later may automatically or manually adjust the forward and backward movement of the signal unit.

The signal unit 130 may not overlap the first jaw 110 in the third direction (Z-axis direction), for example, in the vertical direction. In addition, since the signal unit 130 is seated on the protrusion 120a of the second jaw 120 , it may be vertically overlapped with the second jaw 120 . That is, the signal unit 130 may be supported by the lower second jaw 120 . Furthermore, the signal unit 130 may be spaced apart from the first jaw 110 in the second direction on the second jaw 120 to irradiate the optical signal at an accurate position with respect to the tissue to be placed on the second jaw 120 . . In addition, since the line scan is performed in the longitudinal direction with respect to the entire thickness (length in the second direction) of the tissue on the second jaw 120 , the operator can accurately determine the excised portion and the non-ablated portion of the tissue.

And the signal unit 130 may include an optical fiber, through the optical signal may be irradiated toward the tissue. Additionally, the signal unit 130 may further include a cover surrounding the optical fiber, a buffer, and the like.

In addition, the signal unit 130 may include both a light emitting unit and a light receiving unit as described above. The signal unit 130 may have a transceiver 131 opened at an end thereof, and may emit an optical signal and receive a reflected optical signal through the transceiver 131 . In an embodiment, the signal unit 130 may be connected to an image generator to be described later with a light irradiator that emits an optical signal toward the tissue and a light receiver that receives an optical signal reflected from the tissue. Also, the transceiver 131 may be disposed toward the tissue. That is, the transceiver 131 may have a shape that is opened toward a region between the first jaw 110 and the second jaw 120 .

In addition, the signal unit 130 may be made of a flexible material to provide a desired shape.

3 is a top view of the ablation apparatus according to the first embodiment, FIG. 4 is a side cross-sectional view of the ablation apparatus according to the first embodiment, and FIG. 5 is a side cross-sectional view viewed from a different direction from FIG. 4 .

3 to 5 , in the embodiment, the first jaw 110 may include a first area S1 and a second area S2 . The first region S1 may be a region overlapping the cut portion 121 of the second jaw 120 in the third direction (Z-axis direction). That is, the first region S1 may be a region in which the first jaw 110 contacts the protrusion 121a of the cut-out portion 121 by rotation of the first jaw 110 or the second jaw 120 .

The first region S1 may have a first curvature r1 in some or all of the regions. In an embodiment, the first jaw 110 may include a first outer surface F1 and a second outer surface F2 extending in the longitudinal direction and facing each other. The first outer surface F1 and the second outer surface F2 may have a first curvature r1 . Accordingly, the field of view of the tissue is easily secured during tissue resection, and damage to the surrounding organs by the first jaw 110 can be prevented.

Correspondingly, the cut portion 121 of the second jaw 120 may also have a second curvature r2. The first curvature r1 may be the same as the second curvature r2. Accordingly, the contact area between the first jaw 110 and the cut portion 121 may have a separation distance of the same ratio in the second direction with respect to the first jaw 110 and the cut portion 121 . Due to this configuration, the force applied between the first jaw 110 and the cut-out portion 121 during contact between the first jaw 110 and the cut-out portion 121 (eg, the cut-off function) will not be concentrated on one side. can Accordingly, the reliability of the first jaw 110 and the cut portion 121 may be improved.

In addition, the signal unit 130 may also have a third curvature r3 in a region corresponding to the first region S1 (eg, a region overlapping the cut portion in the second direction). The third curvature r3 may be the same as the first curvature r1 and the second curvature r2. With this configuration, the optical signal, etc. is emitted toward the first jaw 110 through the signal unit 130 (SG1) and is reflected from the tissue between the first jaw 110 and the excision unit 121 (SG2). ), the error according to the distance can be minimized.

Also, the second jaw 120 may include a first edge surface E1 and a second edge surface E2 extending in the longitudinal direction and facing each other. The first edge surface E1 may be disposed adjacent to the first outer surface F1 , and the second edge surface E2 may be disposed adjacent to the second outer surface F2 . That is, the first edge surface E1 may be positioned to correspond to the side where the groove 110a is located in the first jaw 110 , and the second edge surface E2 is the signal unit 130 or the protrusion 120a. ) and can be placed adjacent to each other.

In an embodiment, the first separation distance d1 between the first outer surface F1 and the first edge surface E1 is the second separation distance between the second outer surface F2 and the second edge surface E2. may be smaller than (d2). By this configuration, the second jaw 120 can easily form the protrusion 120a on one side. In addition, since the signal unit is located between the second outer surface F2 and the second edge surface E2, by taking the second separation distance d2 larger than the first separation distance d1, the signal unit 130 is It is possible to easily provide a space where it can be arranged. In addition, the position of the tissue positioned between the first jaw 110 and the second jaw 120 by reducing the first separation distance d1 between the first outer surface F1 and the first edge surface E1 In particular, it is possible to provide a field of view that can accurately recognize the location of the ablation.

In addition, the groove 110a may be disposed on the first outer surface F1 as described above to provide an accurate view of the tissue to be resected.

In addition, the end surface 120k of the second jaw 120 may extend further in the first direction (or the longitudinal direction) than the end of the first jaw 110 .

Fig. 6 is a front view of the ablation device according to the first embodiment;

Referring to FIG. 6 , in the ablation apparatus according to the first embodiment, the maximum height h1 of the ablation portion 121 may be greater than the maximum height of the protrusion h2 . That is, the signal unit 130 may partially overlap the cutout unit 121 in the second direction (Y-axis direction). Accordingly, since the tissue positioned on the excision part 121 may be positioned to overlap the signal part 130 in the second direction (Y-axis direction), the light emitted through the signal part 130 may be provided to the tissue. can Accordingly, since noise of a signal may be reduced in emission and reflection of a signal through the signal unit 130 , the accuracy of detecting a blood vessel as a tissue resection device to be described later may be greatly improved.

In addition, the signal unit 130 overlaps the first signal region 130 - 1 overlapping the protrusion 120a in the third direction (Z-axis direction) and the cut-out portion 121 in the third direction (Z-axis direction). The second signal region 130 - 2 may be included.

The first signal area 130 - 1 may be disposed on the protrusion 120a and contact the protrusion 120a. However, the present invention is not limited thereto, and a coupling member such as a moving member may be positioned between the first signal area 130-1 and the protrusion 120a.

Since the second signal region 130 - 2 overlaps the cut portion 121 in the third direction (Z-axis direction) as described above, one side of the signal unit 130 is disposed adjacent to the first jaw 110 . can be In addition, the length of the first signal region 130 - 1 in the second direction may be greater than the length of the second signal region 130 - 2 in the second direction. Accordingly, the signal unit 130 may be sufficiently supported on the protrusion 120a. In addition, the ablation apparatus according to the embodiment minimizes the separation distance between the signal unit 130 and the first jaw 110 through the second signal area 130 - 2 to minimize the noise of the signal emitted through the signal unit 130 . can be minimized.

7 is a top view and a bottom view of the first jaw; Specifically, in FIG. 7, (a) is a top view of the first jaw, and (b) is a bottom view of the first jaw.

Referring to FIGS. 7A and 7B , both the first outer surface F1 and the second outer surface F2 may have curvatures. In an embodiment, the first outer surface F1 and the second outer surface F2 of the lower surface 110 - 1 and the upper surface 110 - 2 of the first jaw 110 may have curvature in at least some regions. . In particular, the 1-1 curvature r1 of the second outer surface F2 and the 1-2 curvature r1' of the first outer surface F1 may be the same, and the first outer surface F1 and It may be located at the lower end of the second outer surface F2. Accordingly, the ablation apparatus according to the embodiment can easily identify the tissue as described above and prevent damage to organs adjacent to the tissue by the ablation apparatus.

8 and 9 are views for explaining the operation of the signal transmission member.

8 and 9 , the signal unit 130 is disposed spaced apart from the first jaw 110 in the second direction and disposed on the second jaw 120 to move in the first direction (longitudinal direction). .

First, the signal unit 130 includes a transceiver 131 that emits a signal to the tissue (SG1) and receives a signal reflected from the tissue (SG2), and the transceiver 131 is located at the end in the longitudinal direction. can That is, the transceiver 131 may be located on the end of the protrusion 120a of the second jaw 120 .

In the embodiment, for line scanning of human tissue, the transceiver 131 may be located at the upper end of the cut section 121 of the second jaw 120 , and the cut section 121 is located at the upper end of the cut section 121 . You can move to the bottom (LS). That is, the signal unit 130 or the transceiver 9131 may move in the longitudinal direction along both ends of the cutting unit 121 .

In addition, the transceiver 131 performs line scanning on the tissue, so that the tissue resection device to be described later can image the resected portion and non-resected portion of human tissue such as blood vessels in the line-scanned tissue as a human recognizable image. . Accordingly, the resection apparatus according to the embodiment provides an image so that it can be immediately recognized whether the human tissue caught by the resection apparatus is an excision site or a non-resection site in various surgeries such as laparoscopic surgery, thoracoscopic surgery, or robotic surgery, so that a doctor's Only a portion necessary for a user to undergo surgery can be easily excised.

10 is a top view of the ablation apparatus according to the second embodiment, and FIG. 11 is an enlarged view of part A in FIG. 9 .

The ablation apparatus according to the second embodiment may include a first jaw 110 , a second jaw 120 , and a signal unit 230 . The description of the first jaw 110 and the second jaw 120 may be equally applied to the contents according to the first embodiment described above. In addition, it should be understood that the above-described contents may be equally applied to the function (signal transmission/reception) of the signal unit 230 , and contents described below may be applied in different structures.

The signal unit 230 may include a transmission unit 231 through which a signal moves and a transceiver 232 for emitting a signal moving from the transmission unit 231 to the tissue. For the transceiver 232 , the above-described content for the transceiver may be applied. In addition, the transceiver 232 may include a mirror 233 and a lens unit 234 . The mirror 233 is located at one end of the transmission unit 231 and may reflect a signal moved from the transmission unit 231 . In addition, the lens unit 234 may emit a signal reflected from the mirror 233 toward the tissue.

First, the transfer unit 231 may be formed of an optical fiber and a cover surrounding the optical fiber. And the delivery unit 231 may be connected to the operation member of the tissue resection apparatus at the rear end. Furthermore, the delivery unit 213 may be connected to an image generator to be described later and provide a blood vessel of a tissue as an image as a reflected signal. The image generating unit and the operation member will be described later.

The transfer unit 231 includes an optical fiber and moves along the longitudinal direction as described above to transmit and receive signals to perform line scanning of the tissue.

The mirror 233 may reflect the signal transmitted through the transmission unit 231 to the tissue. In addition, a signal reflected from the tissue may be received and reflected to the transmitting unit 231 . For example, the mirror 233 may change the path of the signal so that the signal is emitted to the tissue by vertically reflecting the signal moved through the transfer unit 231 . With this configuration, line scanning may be performed on the tissue adjacent to the signal unit 130 .

In an embodiment, the mirror 233 and the lens unit 234 may be positioned to face each other. In an embodiment, the lens unit 234 may be positioned between the mirror 233 and the first jaw 110 . In other words, the lens unit 234 may be located closer to the first jaw 110 than the mirror 233 .

The lens unit 234 may have a predetermined curvature shape, and may project a signal reflected from the mirror 233 onto the tissue. For example, the lens unit 234 may focus or diffuse the reflected signal.

12 is a top view of the ablation apparatus according to the third embodiment, and FIG. 13 is an enlarged view of part B in FIG. 12 .

The ablation apparatus according to the third embodiment may include a first jaw 110 , a second jaw 120 , and a signal unit 330 . The description of the first jaw 110 and the second jaw 120 may be equally applied to the contents according to the various embodiments described above. In addition, it should be understood that the above-described contents may be equally applied to the function (signal transmission/reception) of the signal unit 330 , and the contents described below may be applied in different structures.

12 and 13 , the signal unit 330 includes a transmitting unit 331 through which a signal moves, a transceiver 332 for emitting a signal moving from the transmitting unit 331 to the tissue, and a transmitting/receiving unit output from the transmitting/receiving unit It may include a reflective member 333 for reflecting the light to the tissue. Similarly, for the transceiver 332 , the above-described content for the transceiver may be applied.

The delivery unit 331 includes an optical fiber and moves along the longitudinal direction as described above to transmit and receive signals to perform line scanning of the tissue.

The transceiver 332 may spread the signal moved through the transfer unit 331 . For example, the transceiver 332 may be formed of a lens.

The reflective member 333 may be positioned below the transmission unit 331 and the transceiver 332 . That is, the reflective member 333 may be located at the lowermost portion of the signal unit 330 , and may be located closer to the end surface of the second jaw 120 than the transmission unit 331 and the transceiver 332 .

The reflective member 333 may have a surface inclined at a predetermined inclination angle, for example, 45 degrees. With this configuration, the reflective member 333 may reflect the signal so that the signal emitted through the transceiver 332 is incident toward the tissue.

14 is a top view of the ablation apparatus according to the fourth embodiment, and FIG. 15 is an enlarged view of part C in FIG. 14 .

The ablation apparatus according to the fourth embodiment may include a first jaw 110 , a second jaw 120 , and a signal unit 430 . The description of the first jaw 110 and the second jaw 120 may be equally applied to the contents according to the various embodiments described above. In addition, it should be understood that the above-described contents may be equally applied to the function (signal transmission/reception) of the signal unit 430 , and the contents described below may be applied in different structures.

14 and 15 , in the ablation apparatus according to the fourth embodiment, a plurality of signal units 430 may be provided. For example, the signal unit 430 may include a first signal unit 431 and a second signal unit 432 . The first signal unit 431 and the second signal unit 432 may perform line scanning on the tissue in the same manner as the signal unit described in the resection apparatus of the first to third embodiments.

However, the first signal unit 431 may move in the longitudinal direction only within a predetermined range in the first region S1 . Also, the second signal unit 432 may move in the longitudinal direction only within a predetermined range 1 in the first region S1 .

In this case, the first signal unit 431 and the second signal unit 432 may move in the longitudinal direction in different ranges. In an embodiment, the first signal unit 431 may be disposed closer to the first jaw 110 than the second signal unit 432 .

Also, the first signal unit 431 and the second signal unit 432 may have different lengths in the longitudinal direction. In an embodiment, the length of the first signal unit 431 in the longitudinal direction may be smaller than the length of the second signal unit 432 in the longitudinal direction. Accordingly, the first signal unit 431 may be positioned between the second signal unit 432 and the first jaw 110 .

In addition, the first signal unit 431 can move only in the upper area in the first area S1 (SLA). Contrary to this, the second signal unit 432 may move only in the lower region in the first region S1 (SLB). With this configuration, the first signal unit 431 and the second signal unit 432 may perform line scanning on different regions in the first region S1 . With this configuration, the ablation apparatus according to the fourth embodiment can perform line scanning on the tissue in less time.

Additionally, the first signal unit 431 and the second signal unit 432 may have the same or different moving directions. For example, the first signal unit 431 and the second signal unit 432 may move downward or upward within the same time range in a predetermined period. And when the moving directions are the same, the separation distance DL between the end (eg, transceiver) of the first signal unit 431 and the end (eg, transceiver) of the second signal unit 432 is maintained, Noise caused by light emitted through each of the first signal unit 431 and the second signal unit 432 may be maintained equally.

Also, when the moving directions are different, noise caused by the light emitted through each of the first signal unit 431 and the second signal unit 432 may be minimized for some time.

In addition, in addition to ultrasonic ablation or radiofrequency ablation instruments, various types of components used to excise microtissues such as blood vessels in various surgeries such as laparoscopic surgery, thoracoscopic surgery, or robotic surgery, within the range apparent from the perspective of those skilled in the art, are resected. It should be understood that the device may be mounted.

16 is a conceptual diagram of a tissue ablation apparatus according to an embodiment.

The tissue ablation apparatus 1000 according to the embodiment may include the ablation apparatus 100 , an extension part 200 , and an operation member 300 .

First, it should be understood that the ablation device 100 may be applied to the ablation device according to various embodiments described above.

And the extension 200 may be connected to the ablation device 100 . In particular, the extension 200 may have a flexible and movable tubular structure. The extension 200 may connect the ablation apparatus 100 inserted into the human body and an image generator installed outside, which will be described later. A connection device or the like may be disposed on the extension unit 200 so that the above-described signal unit is movable.

In addition, the operation member 300 may operate the operation of the ablation apparatus 100 . For example, the operation member 300 may ablate the tissue by manipulating the rotation of the first jaw and the second jaw by the ablation device 100 . In addition, the manipulation member 300 may operate the signal unit 130 to move in the longitudinal direction for line scanning of the signal unit 130 .

For example, the operation member 300 may function in an automatic operation method or a manual operation method. The automatic operation method may be a method of moving the signal unit back and forth a predetermined number of times for a predetermined time when there is an input through the operation member 300 (eg, a button push).

The manual operation method may be a method in which the operator manually controls the speed and time of the forward or backward movement of the operation member 300 . Accordingly, the operator can adjust the scanning distance of the tissue as desired.

17 is a block diagram of a tissue ablation system according to an embodiment.

Referring to FIG. 17 , the tissue ablation system according to the embodiment may include a tissue ablation apparatus 1000 , an image generator 2000 , and a display unit 3000 .

In an embodiment, the tissue ablation system inserts the front end of the tissue ablation apparatus 1000 into the human body, and inserts the tissue ablation apparatus 1000 into the resection part of the tissue ablation apparatus 1000. It is a system that images non-resected areas so that they can be distinguished.

Since the tissue ablation apparatus 1000 has the above-described structure and function, a description of the tissue ablation apparatus 1000 will be omitted below.

In addition, the image generator 2000 may include a signal generator (not shown) and an image signal calculator. The signal generating unit (not shown) is a member that provides a signal to the signal unit of the above-described tissue resection apparatus.

Various light sources for emitting an optical signal and the like may be applied to the signal generator.

The image signal calculating unit may output an image signal by interfering with the signal reflected from the tissue, and transmit the output image signal to the display unit 3000 . Here, the image signal may be a signal obtained by optical interference with a signal reflected from one surface of the tissue held in the resection unit provided through the signal unit.

Here, the interference signal may be the above-described scan signal, and the scan signal may be an element (eg, slope) of a graph calculated by taking the x-axis as the depth at which the optical signal is reflected from the tissue and the y-axis as the backscattered intensity. . For example, the operator can perform resection by easily determining a portion with a sharp change in inclination on the graph as an excision tissue and a portion with a gentle gradient change as a non-ablation tissue. And it can improve the accuracy of surgery.

In addition, the image signal calculating unit may include, for example, an optical interference optical system to which an optical coherence tomography (OCT) technology for an optical signal is applied.

The display unit 3000 may be connected to the image generation unit 2000 to image a signal (eg, an optical interference signal) output from the image generation unit 2000 . In this case, the display unit 3000 may provide an image to the operator with the excised portion and the non-resected portion of the tissue.

At this time, since the signal part is disposed on the side of the first jaw as described above, the operator visually confirms the position of the resected tissue from one side and at the same time confirms the presence or absence of blood vessels in the tissue through the image to determine whether or not to resection. Able to make good judgments. Accordingly, it is possible to prevent accidents such as unintentional blood vessel resection. In addition, the tissue resection system according to the embodiment may provide an image capable of easily distinguishing an excision site/non-ablation site without a photographing device such as a camera.

The tissue resection apparatus or the system including the same according to the present invention has a structure detachably connected to an external device for imaging tissue, so that when the tissue resection apparatus is damaged, it can be easily replaced and then re-photographed immediately, laparoscopic It can increase the efficiency of surgery.

In addition, as described above, in the tissue resection apparatus or a system including the same, the presence or absence of blood vessels and their size can be easily observed with the naked eye or the like through the image of the internal structure of the tissue to be resected. damage can be minimized.

That is, the present invention uses a tissue resection device to which an intra-tissue imaging module is applied to determine the presence of blood vessels inside the resected tissue during laparoscopic surgery, thereby allowing the clinician to unintentionally It can protect blood vessel resection and make safe tissue resection.

The term '~ unit' used in this embodiment means software or a hardware component such as a field-programmable gate array (FPGA) or ASIC, and '~ unit' performs certain roles. However, '-part' is not limited to software or hardware. The '~ unit' may be configured to reside on an addressable storage medium or may be configured to refresh one or more processors. Thus, as an example, '~' denotes components such as software components, object-oriented software components, class components, and task components, and processes, functions, properties, and procedures. , subroutines, segments of program code, drivers, firmware, microcode, circuitry, data, databases, data structures, tables, arrays, and variables. The functions provided in the components and '~ units' may be combined into a smaller number of components and '~ units' or further separated into additional components and '~ units'. In addition, components and '~ units' may be implemented to play one or more CPUs in a device or secure multimedia card.

Although the embodiment has been described above, it is only an example and does not limit the present invention, and those of ordinary skill in the art to which the present invention pertains are not exemplified above in a range that does not depart from the essential characteristics of the present embodiment. It will be appreciated that various modifications and applications are possible. For example, each component specifically shown in the embodiment can be implemented by modification. And differences related to such modifications and applications should be construed as being included in the scope of the present invention defined in the appended claims.

Claims (15)

first jaw;
a second jaw comprising an ablation portion comprising a protrusion to ablate tissue and rotatable relative to the first jaw below the first jaw; and
a signal portion for providing a signal to the tissue and receiving a reflected signal and disposed on the second jaw;
The signal unit moves along the longitudinal direction of the cutout,
The first jaw does not overlap the signal unit in the vertical direction,
The second jaw overlaps the signal part in the vertical direction,
The second jaw includes a recess in which the cut portion is seated and a protrusion located at one side,
The signal portion is an ablation device disposed on the protrusion. delete According to claim 1,
The signal unit,
a first signal region overlapping the protrusion in the vertical direction; and
and a second signal region overlapping the ablation portion in the vertical direction. According to claim 1,
The first jaw is
and a first region overlapping the cut portion in the vertical direction,
and an outer surface of the first jaw has a first curvature within the first region. 5. The method of claim 4,
an outer surface of the second jaw has a second curvature below the first region;
The outer surface of the signal portion has a third curvature below the first region ablation device. 6. The method of claim 5,
wherein the first curvature, the second curvature and the third curvature are the same. delete According to claim 1,
The signal unit moves in the longitudinal direction along between both ends of the excision unit. According to claim 1,
The signal unit includes a transmission unit through which the signal moves, and a transceiver unit for emitting the signal moved from the transmission unit to the tissue and receiving the reflected signal. 10. The method of claim 9,
The transceiver unit includes a mirror for reflecting the signal toward the tissue; and a lens unit configured to project the tissue reflected from the mirror toward the tissue. 10. The method of claim 9,
The signal unit further includes a reflective member positioned at an end spaced apart from the transmitting unit and the transceiver,
The reflective member is an ablation device for reflecting the signal emitted from the transceiver to the tissue. 12. The method of claim 11,
The signal unit includes a plurality of first and second signal units,
The ablation device wherein the first signal unit and the second signal unit move in the longitudinal direction in different ranges with respect to the tissue. 13. The method of claim 12,
The first signal unit is disposed between the second signal unit and the first jaw,
The length of the first signal portion in the longitudinal direction is smaller than the length in the longitudinal direction of the second signal portion. an ablation device to excise tissue;
an extension connected to the ablation device; and
Including; a manipulation member for manipulating the operation of the ablation device;
first jaw;
a second jaw comprising an ablation portion comprising a protrusion to ablate tissue and rotatable relative to the first jaw below the first jaw; and
a signal portion for providing a signal to the tissue and receiving a reflected signal and disposed on the second jaw;
The signal unit moves along the longitudinal direction of the cutout,
The first jaw does not overlap the signal unit in a vertical direction,
The second jaw overlaps the signal part in the vertical direction,
The second jaw includes a recess in which the cut portion is seated and a protrusion located at one side,
The signal unit is a tissue ablation device disposed on the protrusion. a tissue ablation device comprising an ablation device for ablating tissue;
an image generator providing a signal to the tissue resection device and outputting an image signal by receiving a signal reflected from the tissue; and
a display unit for receiving and displaying the image signal;
The ablation device is
first jaw;
a second jaw comprising an ablation portion comprising a protrusion to ablate tissue and rotatable relative to the first jaw below the first jaw; and
a signal portion for providing a signal to the tissue and receiving a reflected signal and disposed on the second jaw;
The signal unit moves along the longitudinal direction of the cutout,
The first jaw does not overlap the signal unit in a vertical direction,
The second jaw overlaps the signal part in the vertical direction,
The first jaw includes a first outer surface and a second outer surface extending in the longitudinal direction and facing each other,
The second jaw includes first and second edge surfaces extending in the longitudinal direction and facing each other,
A first separation distance between the first outer surface and the first edge surface is smaller than a second separation distance between the second outer surface and the second edge surface,
wherein the signal portion is disposed between the second outer surface and the second edge surface.

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