KR20180007858A - System and method for measuring the length of stricture lesion - Google Patents

Abstract

The present invention relates to an apparatus and a method for measuring the length of a stenosis lesion portion. The apparatus for measuring the length of a stenosis lesion portion according to one embodiment of the present invention comprises: a guide pipe which passes through a stenosis lesion portion; an air injecting pipe which is provided within the guide pipe; an expansion unit which is provided in a first side end portion of the guide pipe, is connected to the air injecting pipe, and receives air to be expanded; and an air injector which is provided in a second side end portion of the guide pipe outside a body, and injects air sucked from the outside through the air injecting pipe to the expansion unit. The guide pipe has an identification mark capable of checking the length of the stenosis lesion portion. According to the present invention, the length of the stenosis lesion portion in a curved lumen (that is, duodenum, esophagus, large intestine and the like) in a 3D space can be calculated.

Description

TECHNICAL FIELD [0001] The present invention relates to a device for measuring a length of a stenosis lesion,

The present invention relates to a stricture lesion site length measuring apparatus and a length measuring method for measuring a stricture lesion site length.

When a tumor develops in the body or inflammation such as an ulcer occurs, specific body parts such as the esophagus, stomach, duodenum, small intestine, and large intestine can be blocked or narrowed. In order to perform such procedures as balloon dilatation or stent insertion to widen the stenosis, it is necessary to determine the extent of the stenosis.

Previously, after the administration of the contrast agent, the lesion site was measured by radiography, but since the radiographic image is a 2D image, it is difficult to grasp the exact length on the three-dimensional image.

In addition, measuring the length of the passage of a stenotic lesion in the lumen simply may not be accurate because the lesion may be curved.

If the length of the stenotic lesion is not accurately measured, the length of the stent required to widen the stenosis may not be known precisely, and the stent may become too long or short. If the stent is too long, wasteful stents may be wasted and complications may occur in the normal lumen. If the stent is too short, additional stenting may be required because the stenosis can not be fully widened. Therefore, it is very important to measure the exact length of the stenosis site.

The present invention provides a device for measuring a stricture lesion length to measure the exact length of a tour that requires surgery or surgery without being affected by the curvature of the lesion site caused by the tumor.

In addition, by measuring the length of a stricture lesion site through an endoscope or a radiation imaging device after inserting a stricture lesion length measuring device into a stricture lesion site, a medical staff can accurately determine the surgical plan, .

An apparatus for measuring a stricture lesion length according to an embodiment of the present invention includes: a guide tube passing through a stricture lesion; An air inlet tube provided in the guide tube; An expansion unit provided at a first side end of the guide tube and connected to the air injection tube to expand by receiving air; And an air injector provided at a second side end of the guide pipe located outside the body and injecting air into the extension part from the air sucked from the outside through the air injection pipe, And an identification mark capable of identifying the length of the lesion site.

According to another aspect of the present invention, there is provided an apparatus for measuring a stricture lesion length, comprising: a guide tube passing through a stricture lesion; An air inlet tube provided in the guide tube; An expansion unit provided at a first side end of the guide tube and connected to the air injection tube to expand by receiving air; And an air injector connection unit provided at an end of the guide pipe at a second side of the body to connect the air injector, wherein the air injector injects air sucked from the outside into the air injection pipe, And the guide tube is provided with an identification mark capable of checking the length of the stricture lesion site.

The guide tube may be inserted into an endoscope tube, and the identification mark provided on the guide tube may be a ruler that is visible on the surface of the guide tube through an endoscope.

In addition, the ruler may start from a point on the guide tube at a point where the expanding part is in contact with the stenosis lesion, and one or more scales may display an identification mark capable of identifying the length of the stenosis lesion .

The identification mark may be a ruler having one or more graduations spaced apart from each other by a predetermined distance, and the at least one graduation may be formed of a contrast material.

The stent insertion tube may further include a stent insertion tube disposed in the guide tube and having a stent inserted therein. The stent insertion tube may protrude outwardly as it passes through a first side end of the guide tube .

In addition, the guide pipe is provided at the second side end, and when the air pump is rotated in the first direction, the connection between the air injection pipe and the air injector is interrupted to allow external air to flow, And an air valve connecting the air injection pipe and the air injector to block inflow of external air.

According to another embodiment of the present invention, there is provided a method for measuring a length of a stricture lesion, comprising the steps of: inserting a guide tube passing through an endoscopic tube into the stricture lesion; Injecting air through an air injector to expand the expanding portion when the enlarged portion provided in the guide tube passes through the narrowed lesion portion; Pulling the guide tube such that the expanding portion contacts one side of the stenotic lesion site and the guide tube is tightened; And a scaling step of grasping a scale corresponding to the other side of the stenotic lesion site through an endoscope inserted through an endoscope tube,

In addition, the scaling step may include measuring the length of the stenotic lesion region through a length identification mark together with the scales.

According to another embodiment of the present invention, there is provided a method for measuring a stenosis lesion length, comprising: inserting a guide tube into the stenosis lesion; Injecting air through an air injector to expand the expanding portion when the enlarged portion provided in the guide tube passes through the narrowed lesion portion; Pulling the guide tube such that the expanding portion contacts one side of the stenotic lesion site and the guide tube is tightened; And a scaling step of confirming a scale corresponding to the other side of the stenotic lesion site through radiography, wherein the scale is formed of contrast material.

Further, in the scaling step, it is possible to grasp the number of scales from the expanding part and to grasp the length of the stenosis lesion part.

According to the present invention, the precise length of a stricture lesion site can be measured. That is, it is possible to calculate the length of a stricture lesion site in a three-dimensional space-bending duct (i.e., duodenum, esophagus, large intestine, etc.). In addition, the exact length can be grasped without being affected by the bending of the stenotic lesion site.

Further, by confirming the scale with the endoscope, the length of the lesion site can be easily grasped while confirming the lesion site with the endoscope.

In addition, the medical staff can accurately determine the stent length required for stenosis enlargement by measuring the stenosis lesion site, thereby improving the accuracy of the stenting procedure. The use of a stent that does not fit the patient's condition can reduce the likelihood of complications that may occur in the patient's normal lumen. In addition, since the exact length of the stenosis site can not be grasped, it is possible to reduce the case where the stent is used again after using the short stent, thereby reducing the medical cost.

1 is an exemplary view of an apparatus for measuring a stricture lesion length including an air injector according to an embodiment of the present invention.
2 is an exemplary view of an apparatus for measuring a stricture lesion length having an air injector connecting portion to which an air injector according to an embodiment of the present invention can be connected.
3 is an exemplary view of an apparatus for measuring a stricture lesion length, further comprising an air valve according to an embodiment of the present invention.
4 is an exemplary diagram for measuring the length of a stricture lesion site in accordance with an embodiment of the present invention.
5 is a flowchart of a method for measuring a stenosis lesion length through an endoscope according to an embodiment of the present invention.
6 is a flowchart of a method for measuring a stenosis lesion length through radiography according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

Unless defined otherwise, all terms (including technical and scientific terms) used herein may be used in a sense commonly understood by one of ordinary skill in the art to which this invention belongs. Also, commonly used predefined terms are not ideally or excessively interpreted unless explicitly defined otherwise.

The terminology used herein is for the purpose of illustrating embodiments and is not intended to be limiting of the present invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. The terms " comprises "and / or" comprising "used in the specification do not exclude the presence or addition of one or more other elements in addition to the stated element.

1 is an exemplary view of an apparatus for measuring a stricture lesion length including an air injector according to an embodiment of the present invention. 2 is an exemplary view of an apparatus for measuring a stricture lesion length having an air injector connecting portion to which an air injector according to an embodiment of the present invention can be connected. 3 is an exemplary view of an apparatus for measuring a stricture lesion length, further comprising an air valve according to an embodiment of the present invention. 4 is an exemplary diagram for measuring the length of a stricture lesion site in accordance with an embodiment of the present invention. 5 is a flowchart of a method for measuring a stenosis lesion length through an endoscope according to an embodiment of the present invention. 6 is a flowchart of a method for measuring a stenosis lesion length through radiography according to an embodiment of the present invention.

Hereinafter, an apparatus and method for measuring a stricture lesion length according to one embodiment of the present invention will be described with reference to the drawings.

Referring to FIG. 1, an apparatus 10 for measuring a stricture lesion length according to an embodiment of the present invention includes a guide tube 100; An air injection pipe 200; An extension part 300; And an air injector (400). Hereinafter, a detailed description of each configuration will be described.

The guide tube 100 corresponds to a tube passing through the stricture lesion site 2. The guide tube 100 may be formed of a material that can be bent along the bending of the tube 1 and may include at least one tube such as an air injection tube 200 described later.

The guide tube 100 may be inserted into the stenotic lesion site in a variety of ways. In one embodiment, the guide tube 100 is inserted into the endoscope tube 20 and inserted into the vicinity of the stenotic lesion region formed in the tube 1 through the endoscope tube 20. For example, when inserting the guide tube 100, the endoscope tube 20 having the forceps or the working channel of the endoscope can be used.

Further, in another embodiment, the guide tube 100 may be inserted directly into the body through the mouth or anus. For example, when the guiding tube is provided with a stent insertion tube as described later, if the thickness of the stent to be used is too large, it may not be inserted into the forceps hole of the endoscope. In this case, the guide tube 100 can be inserted directly into the inside of the body without passing through the forceps of the endoscope, and the radiographic imaging is performed by the identification mark on the guide tube made of the contrast material or the fluorescent material as described later, The length can be measured.

The guide tube 100 may have an identification mark. The identification mark may be displayed on the surface of the guide tube 100 formed of a ruler 110 capable of identifying the length of a stricture lesion site. That is, the guide tube 100 can identify a ruler for measuring the length of the stricture lesion site 2 by using an endoscope or a radiography apparatus. For example, if a medical staff inserts a guide tube through a forceps balloon of an endoscope and identifies the lesion site through the endoscope, the medical staff checks the scale adjacent to the lesion site through the endoscope to measure the length of the lesion site can do.

The ruler (110) begins at a point on the guide tube where the extension portion is in contact with the stenotic lesion. That is, in the case of measuring the stenosis lesion length by the medical staff, when the expanding part 300 is inflated by the air injector 400 described later and the length measuring device 10 is pulled from the outside, It comes into contact with one side of the stricture lesion and is no longer moved. Thus, the starting point of the stenotic lesion site can coincide with the inner surface of the dilated portion, so that the point on the guide tube, at which the dilatation portion contacts the stenotic lesion, can be the starting scale of the ruler.

In addition, the ruler 110 may be marked with one or more scales with an identification mark identifying the length of the stenotic lesion. Since the scale placed in the stenosis lesion site 2 can not be confirmed through the endoscope, the length must be identifiable by each scale itself in order to determine the length from the starting point of the scale 110. Therefore, the scale of the ruler can be provided with an identification mark indicating the length from the starting point.

For example, the identification mark may be a numerical value displayed around the scale. In addition, the identification mark may be a scale color for each length. In other words, the medical staff can check the color of the scale located at the end of the stenotic lesion site through the endoscope to determine the length of the stenotic lesion site.

In addition, the ruler 110 may have a basic unit scale and a detailed unit scale. The detailed graduation unit means a unit of length in which the basic graduation unit is finely divided. For example, the basic unit scale displayed on the guide pipe 100 may have an identification mark, and the detailed unit scale may have only a scale mark. At this time, when the scales displayed on the surface of the guide tube 100 are confirmed by the endoscope, the medical staff confirms the length of the basic unit near the distal end of the stenotic lesion and confirms the length of the base unit to the distal end of the stenotic lesion The exact unit length of the stenotic lesion can be determined by determining the unit difference.

In addition, one or more scales of the scale 110 may be formed of a contrast material. Through this, the medical staff can calculate the lesion length by inserting the apparatus for measuring the length of the lesion site, and then photographing the patient with the radiographic apparatus. The medical staff can measure the length of the stricture lesion area by checking the number of scales confirmed on the radiographic images from one end to the opposite end of the lesion.

 The air injection pipe 200 is provided in the guide pipe and corresponds to a passage for transmitting air to the extension part 300. That is, one end of the air injection tube 200 may be connected to the air injector 400, and the other end of the air injection tube 200 may be connected to the extension part 300.

The extension portion 300 is provided at the first side end of the guide tube and connected to the air injection tube to be expanded by receiving air. For example, the extension 300 may be a balloon that expands to a specific size and shape as the air is injected. The enlarged portion 300 serves to prevent the guide tube from further entering the stenotic lesion site from one side of the stenotic lesion site as it is inflated.

The air injector 400 is provided at the second side end of the guide tube located outside the body and injects the air sucked from the outside through the air injection tube into the expansion part 300. The air injector 400 may be formed in a syringe shape, but it is not limited thereto and may be formed in various shapes or structures that can inject air.

Further, it may further include an air valve 600. In order to inject air from the outside into the air injector 400 and inject the air from the air injector 400 into the expansion part 300 without spilling the air outside, the air valve 600, which regulates the flow path of the air, have. The air valve 600 is provided at an end of the second side of the guide pipe. When the air valve 600 is rotated in the first direction, the connection between the air injection pipe 200 and the air injector 400 is cut off, The air injection pipe 200 and the air injector 400 may be connected to each other to block the inflow of outside air. The air valve 600 may be formed in various structures that can change the moving path of the air.

In addition, the device for measuring a stricture lesion length according to an embodiment of the present invention may further include a stent insertion tube 700. The stent insertion tube 700 may be disposed in the guide tube and may be formed to protrude from a stent inserted from the outside toward the lumen as it passes through the first side end of the guide tube. Through this, the medical staff can immediately perform the stent-based stenosis lesion site operation.

Referring to FIG. 2, an apparatus 10 for measuring a stricture lesion length according to an embodiment of the present invention includes a guide tube 100; An air injection pipe 200; An extension part 300; And an air injector connection part (500). Hereinafter, a detailed description of each configuration will be described, and a detailed description of the configuration described above will be omitted.

The guide tube 100 is inserted into the endoscope tube and plays a role of passing through a site of stenotic lesion. The guide tube 100 can display a ruler that can be confirmed through the endoscope on the surface. The ruler 110 may begin at a point on the guide tube 100 where the dilation portion is in contact with the stenosis lesion and may be displayed on one or more scales with an identification mark identifying the length of the stenosis lesion. In addition, one or more scales of the scale may be formed of a contrast material.

The air injection tube 200 is provided in the guide tube and serves to supply air to the extension part 300.

The extension part 300 is provided at the first side end of the guide tube and connected to the air injection tube to be expanded by receiving air. The enlarged portion 300 serves to prevent the guide tube from further entering the stenotic lesion site from one side of the stenotic lesion site as it is inflated.

 The air injector connection part 500 is provided at the second side end of the guide pipe 100 located outside the body to connect the air injector. The air injector injects air sucked from the outside into the air injection tube, and a syringe of various shapes or sizes used in a hospital can be used.

The stent insertion tube 700 is disposed in the guide tube and includes a stent insertion tube 700 into which the stent is inserted. As the stent insertion tube 700 passes through the first side end of the guide tube 100, And can be protruded to the outside.

The guide pipe 100 is provided at the second end of the guide pipe 100 to block the connection between the air injection pipe 200 and the air injector 400 during rotation in the first direction, And an air valve 600 connecting the air injection pipe 200 and the air injector 400 to each other to block the inflow of external air when the air injection pipe 200 rotates in the second direction.

Referring to FIG. 5, a method for measuring a stricture lesion length according to another embodiment of the present invention includes the steps of: (S100) inserting a guide tube passing through an endoscope tube into a stricture lesion site; Injecting air through an air injector to expand the expanding part when the expanding part provided in the guide tube passes through the narrowing lesion part (S200); (S300) of pulling the guide tube such that the expanding portion is in contact with one side of the stenotic lesion site and the guide tube is stretched; And a scaling step (S400) of grasping a scale corresponding to the other side of the stricture lesion site through an endoscope inserted through an endoscope tube. Hereinafter, a detailed description of each step will be described.

The guide tube 100 having passed through the endoscope tube 20 is inserted into the stenotic lesion site (S100). The guide tube 100 inserted through the endoscope tube 20 is further inserted to pass through the lesion area after the endoscope tube 20 has moved to the vicinity of the lesion area.

Thereafter, when the expanding portion provided in the guide tube passes through the narrowed lesion portion, air is injected through the air injector to expand the expanded portion (S200).

Thereafter, the guide tube 100 is pulled out from the outside (S300) so that the enlarged portion 400 comes into contact with one side of the stricture lesion site 2 and the guide tube 100 is tensed.

Thereafter, a scaling corresponding to the other side of the stenotic lesion site is confirmed through an endoscope inserted through the endoscope tube 20 (S400; scaling confirmation step). The length of the ruler 110 provided in the guide pipe 100 can be checked. In addition, when the scale of the ruler is provided with the length identification mark, the medical staff can measure the length of the stricture lesion region through the identification mark provided with the scale.

Referring to FIG. 6, a method for measuring a stricture lesion length according to another embodiment of the present invention includes the steps of: (S100) inserting a guide tube into a stricture lesion site; Injecting air through an air injector to expand the expanding portion when the expanding portion provided in the guide tube passes through the narrowing lesion portion; (S300) of pulling the guide tube such that the expanding portion is in contact with one side of the stenotic lesion site and the guide tube is stretched; And a scaling step (S500) of confirming scales corresponding to the other side of the stenotic lesion site through radiography, wherein the scales are formed of a contrast material. Hereinafter, detailed description of the steps described above will be omitted.

A guide tube is inserted into the stenotic lesion site (S100). Thereafter, when the enlarged portion 300 provided in the guide tube passes through the narrowed lesion portion 2, air is injected through the air injector to expand the expanded portion 300 (S200). Thereafter, the guide tube 100 is pulled (S300) such that the expanding portion 300 comes into contact with one side of the stricture lesion site 2 and the guide tube 100 is tightened.

Thereafter, a scaling corresponding to the other side of the stenotic lesion site is confirmed through radiography (S500; scaling confirmation step). The scale may be formed of a contrast material. The scale checking step (S500) can grasp the number of scales from the expanding portion and grasp the length of the stricture lesion portion.

According to the present invention as described above, the following various effects are obtained.

According to the present invention, the precise length of a stricture lesion site can be measured. That is, it is possible to calculate the length of a stricture lesion site in a three-dimensional space-bending duct (i.e., duodenum, esophagus, large intestine, etc.). In addition, the exact length can be grasped without being affected by the bending of the stenotic lesion site.

Further, by confirming the scale with the endoscope, the length of the lesion site can be easily grasped while confirming the lesion site with the endoscope.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, You will understand. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.

1: lumen 2: stricture lesion
10: Stenosis lesion site length measuring device
20: Endoscopic tube
100: Guide tube 110: Ruler
200: air inlet tube 300:
400: air injector 500: air injector connection
600: Air valve 700: Stent injection tube

Claims (11)

A guide tube passing through the lesion site;
An air inlet tube provided in the guide tube;
An expansion unit provided at a first side end of the guide tube and connected to the air injection tube to expand by receiving air; And
And an air injector provided at a second side end of the guide tube located outside the body and injecting air into the extension from the air sucked from outside through the air injection tube,
And an identification mark capable of checking the length of the stenotic lesion site. A guide tube passing through the lesion site;
An air inlet tube provided in the guide tube;
An expansion unit provided at a first side end of the guide tube and connected to the air injection tube to expand by receiving air; And
And an air injector connection part provided at a second side end of the guide tube located outside the body to connect the air injector,
The air injector includes:
Injecting air sucked from the outside into the air injection pipe,
The guide pipe
And an identification mark capable of checking the length of the stenotic lesion site. 3. The method according to claim 1 or 2,
The guide tube is inserted into an endoscope tube,
Wherein the identification mark provided on the guide tube comprises:
And a scintillator which is visible on the surface of the guide tube through an endoscope. The method of claim 3,
The ruler
Wherein the dilatation portion begins at a point on the guide tube where the dilatation portion is in contact with the stenotic lesion,
Wherein the at least one scales are marked together with an identification mark that can identify the length of the stenosis lesion. 3. The method according to claim 1 or 2,
Wherein the identification mark comprises:
A ruler having one or more graduations spaced at a specific interval,
Wherein the at least one scale is formed of a contrast material. 3. The method according to claim 1 or 2,
And a stent insertion tube disposed in the guide tube and into which the stent is inserted,
Wherein the stent insertion tube is capable of protruding the stent to the outside as it passes through the first side end of the guide tube. 3. The method according to claim 1 or 2,
A guide tube provided at a second side end of the guide tube,
The connection between the air inlet tube and the air injector is interrupted during rotation in the first direction so that external air can be introduced,
Further comprising: an air valve connecting the air injection tube and the air injector during rotation in the second direction to block inflow of external air. A method for measuring the length of a stricture lesion site using a device for measuring a lesion length,
Inserting a guide tube through the endoscopic tube into the stenotic lesion;
Injecting air through an air injector to expand the expanding portion when the enlarged portion provided in the guide tube passes through the narrowed lesion portion;
Pulling the guide tube such that the expanding portion contacts one side of the stenotic lesion site and the guide tube is tightened; And
And a scaling step of grasping a scale corresponding to the other side of the stenotic lesion site through an endoscope inserted through an endoscope tube. 9. The method of claim 8,
In the step of checking the scale,
Wherein the length of the stenotic lesion is measured through a length marking marked with the scale. A method for measuring the length of a stricture lesion site using a device for measuring a lesion length,
Inserting a guide tube into the stenotic lesion site;
Injecting air through an air injector to expand the expanding portion when the enlarged portion provided in the guide tube passes through the narrowed lesion portion;
Pulling the guide tube such that the expanding portion contacts one side of the stenotic lesion site and the guide tube is tightened; And
And a scaling step of confirming scales corresponding to the other side of the stenotic lesion region through radiography, wherein the scales are formed of contrast material. 11. The method of claim 10,
In the step of checking the scale,
And the length of the stenotic lesion region is determined by grasping the number of scales from the expanding portion.

Images