US-12622743-B2 - Tissue ablation device, image generation module, and tissue ablation system comprising same

US12622743B2US 12622743 B2US12622743 B2US 12622743B2US-12622743-B2

Abstract

An ablation device includes a first jaw, a second jaw including an ablation unit including a protrusion for ablating a tissue and being rotatable with respect to the first jaw under the first jaw, and a signal unit configured to provide a signal to the tissue and receive a reflected signal and disposed on the second jaw, in which the signal unit moves in a longitudinal direction of the ablation unit, the first jaw does not overlap the signal unit in a vertical direction, and the second jaw overlaps the signal unit in the vertical direction.

Inventors

Young Jae WON
Ki Sub Kim
Yu Kyeong CHAE

Assignees

INTEKMEDI

Dates

Publication Date: 20260512
Application Date: 20201102
Priority Date: 20191104

Claims (14)

1 . An ablation device comprising: a first jaw; a second jaw comprising an ablation unit comprising a protrusion for ablating a tissue and being rotatable with respect to the first jaw under the first jaw; and a signal unit configured to provide a signal to the tissue and receive a reflected signal and disposed on the second jaw, wherein the signal unit moves in a longitudinal direction of the ablation unit, wherein the first jaw does not overlap the signal unit in a vertical direction, wherein the second jaw overlaps the signal unit in the vertical direction, wherein the second jaw comprises a recess in which the ablation unit is nested and a protrusion unit located on a side thereof, wherein the signal unit is disposed on the protrusion unit, wherein an upper surface of the ablation unit is disposed above the protrusion, and wherein the signal unit overlaps the ablation unit in a direction perpendicular to both the vertical direction and the horizontal direction.
2 . The ablation device of claim 1 , wherein the signal unit comprises: a first signal region overlapping the protrusion unit in the vertical direction; and a second signal region overlapping the ablation unit in the vertical direction.
3 . The ablation device of claim 1 , wherein the first jaw comprises a first region overlapping the ablation unit in the vertical direction, and an outer surface of the first jaw has a first curvature in the first region.
4 . The ablation device of claim 3 , wherein an outer surface of the second jaw has a second curvature in a lower portion of the first region, and an outer surface of the signal unit has a third curvature in a lower portion of the first region.
5 . The ablation device of claim 4 , wherein the first curvature, the second curvature, and the third curvature are equal to one another.
6 . The ablation device of claim 1 , wherein the first jaw comprises a first outer surface and a second outer surface which extend in the longitudinal direction and face each other, the second jaw comprises a first edge surface and a second edge surface which extend in the longitudinal direction and face each other, a first separation distance between the first outer surface and the first edge surface is less than a second separation distance between the second outer surface and the second edge surface, and the signal unit is disposed between the second outer surface and the second edge surface.
7 . The ablation device of claim 1 , wherein the signal unit moves in the longitudinal direction between both end portions of the ablation unit.
8 . The ablation device of claim 1 , wherein the signal unit comprises a transfer unit through which the signal moves and a transceiving unit configured to emit the signal moving from the transfer unit to the tissue and receive the reflected signal.
9 . The ablation device of claim 8 , wherein the transceiving unit comprises: a mirror reflecting the signal toward the tissue; and a lens unit emitting the tissue reflected from the mirror toward the tissue.
10 . The ablation device of claim 8 , wherein the signal unit further comprises a reflection member located in an end portion thereof apart from the transfer unit and the transceiving unit, and the reflection member reflects the signal emitted from the transceiving unit to the tissue.
11 . The ablation device of claim 10 , wherein the signal unit comprises a first signal unit and a second signal unit that are provided in plural, and the first signal unit and the second signal unit move in the longitudinal direction in different ranges with respect to the tissue.
12 . The ablation device of claim 11 , wherein the first signal unit is disposed between the second signal unit and the first jaw, and a length of the first signal unit in the longitudinal direction is less than a length of the second signal unit in the longitudinal direction.
13 . A tissue ablation device comprising: an ablation device configured to ablate a tissue; an extension unit connected to the ablation device; and a manipulation member configured to manipulate an operation of the ablation device; a first jaw; a second jaw comprising an ablation unit comprising a protrusion for ablating a tissue and being rotatable with respect to the first jaw under the first jaw; and a signal unit configured to provide a signal to the tissue and receive a reflected signal and disposed on the second jaw, wherein the signal unit moves in a longitudinal direction of the ablation unit, the first jaw does not overlap the signal unit in a vertical direction, and the second jaw overlaps the signal unit in the vertical direction, wherein the second jaw comprises a recess in which the ablation unit is nested and a protrusion unit located on a side thereof, wherein the signal unit is disposed on the protrusion unit, wherein an upper surface of the ablation unit is disposed above the protrusion, and wherein the signal unit overlaps the ablation unit in a direction perpendicular to both the vertical direction and the horizontal direction.
14 . A tissue ablation system comprising: a tissue ablation device comprising an ablation device configured to ablate a tissue; an image generation unit configured to provide a signal to the tissue ablation device, receive a signal reflected from the tissue, and output an image signal; and a display unit configured to receive and display the image signal, wherein the ablation device comprises: a first jaw; a second jaw comprising an ablation unit comprising a protrusion for ablating a tissue and being rotatable with respect to the first jaw under the first jaw; and a signal unit configured to provide a signal to the tissue and receive a reflected signal and disposed on the second jaw, wherein the signal unit moves in a longitudinal direction of the ablation unit, the first jaw does not overlap the signal unit in a vertical direction, and the second jaw overlaps the signal unit in the vertical direction, wherein the second jaw comprises a recess in which the ablation unit is nested and a protrusion unit located on a side thereof, wherein the signal unit is disposed on the protrusion unit, wherein an upper surface of the ablation unit is disposed above the protrusion, and wherein the signal unit overlaps the ablation unit in a direction perpendicular to both the vertical direction and the horizontal direction.

Description

RELATED APPLICATIONS This application is a National Phase of PCT Patent Application No. PCT/KR2020/015113 having International filing date of Nov. 2, 2020, which claims the benefit of priority of Korean Patent Application Nos. 10-2019-0164738 filed on Dec. 11, 2019, 10-2019-0164737 filed on Dec. 11, 2019 and 10-2019-0139548 filed on Nov. 4, 2019. The contents of the above applications are all incorporated by reference as if fully set forth herein in their entirety. FIELD AND BACKGROUND OF THE INVENTION An embodiment relates to a tissue ablation device, an image generation module, and a system including the same. 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 surgical operations, open surgery is an operation in which the skin of an abdominal cavity or face is split open and internal organs, etc., are treated, molded, or removed. When such open surgery is performed, the skin is cut to form a predetermined space between the skin and the tissue, and then the surgical action is performed through the space, resulting in a lot of scars and slow healing after surgery, such that laparoscopic surgery has recently been attracting attention as an alternative to the open surgery. Laparoscopic surgery involves making a small hole in a patient's surgical area and inserting a laparoscope through this hole to perform surgery while observing the surgical area in the abdominal cavity, and has been widely used in various internal medicine and surgical operations, urology, obstetrics and gynecology, etc. Due to many advantages over conventional open surgery, such as the shorter recovery period, small scars, reduced pain and risk of infection, etc., laparoscopic surgery has been rapidly developed since cholecystectomy in 1990. Laparoscopic surgery is currently applied to almost all surgical fields such as colorectal cancer surgery, gastric cancer surgery, hernia, liver resection, thyroid surgery, etc., occupies about 20%-40% of all surgical operations, and is expected to reach 80% of all surgical operations in the future. Laparoscope is one of the equipment for image diagnosis of internal organs of the body, and is generally configured to observe image information detected from a small camera through a monitor installed outside based on insertion of a device having the small camera mounted thereon into the body. The location and size of blood vessels inside the tissue to be ablated vary greatly depending on a patient, and information about the location and size is also unknown, such that laparoscopic surgery should be performed by estimating the location of the blood vessels such as arteries, etc., through the doctor's anatomical knowledge and experience, resulting in a high possibility of unintentional vascular resection during tissue ablation. Resection of the blood vessel during laparoscopic surgery may be such a fatal problem that a considerable amount of time and effort are needed to stop bleeding, which may worsen the conditions of the patient and the doctor, and in the worst case, the patient may die of massive bleeding. Various studies are being conducted to solve this problem, but they are merely half measures to reduce a problem by stopping the bleeding with energy such as ultrasounds, etc., after vascular resection rather than studies for preventing unintentional vascular resection in laparoscopic tissue ablation. Moreover, the location of blood vessels passing inside tissues differs from patient to patient, and the size of the blood vessels also varies greatly, the intensity information of an optical signal passing through the tissue may not accurately represent the existence/absence of blood vessels inside the tissue and malfunction of a device may cause a significant risk to the patient during surgery. During the actual surgery, a probability of unintentional vascular resection is about 3%, out of which a probability of a fatal damage is about 18%, and several billions of dollars are spent as treatment costs due to unintentional vascular resection. Accordingly, a tissue ablation device such as laparoscopy, etc., needs to easily detect blood vessels, etc., in a tissue. SUMMARY OF THE INVENTION An embodiment provides a tissue ablation device which easily detects blood vessels, etc., inside a tissue to be ablated. Moreover, a tissue ablation device is provided in which for accurate ablation, an optical fiber is placed on one side to provide internal imaging using a naked eye or an optical signal. An embodiment provides a tissue ablation device which easily detects blood vessels, etc., inside a tissue to be ablated. Moreover, a tissue ablation device is provided in which for accurate ablation, an optical fiber is placed on one side to provide internal imaging using a naked eye or an optical signal. In addition, a tissue ablation device is provided through which an operator may easily perform a