KR20200017036A - Needle for endoscopy ultrasonic fine needle aspiration biopsy - Google Patents

Abstract

Disclosed is a needle for endoscopic ultrasound-guided fine needle aspiration biopsy comprising: a main body; a tip portion formed on one side of the main body; and a tissue collection part which forms a tissue collection groove in a symmetrical shape to the left and right based on a diameter line passing through a central axis in the longitudinal direction of the main body, and forms a tissue collection blade part on both sides of the tissue collection groove, wherein at least one side of both sides of the tissue collection groove forms the tissue collection blade part that forms a shape that branches to both sides on the basis of a diameter line passing through the central axis in the longitudinal direction of the main body. The present invention can shorten the time required for tissue collection.

Description

Endoscope Ultrasonic Fine Needle Aspiration Needle {NEEDLE FOR ENDOSCOPY ULTRASONIC FINE NEEDLE ASPIRATION BIOPSY}

The present invention relates to a needle for endoscopic ultrasonic fine needle aspiration test, and more particularly, to a needle used for collecting tissue at the time of fine needle aspiration test.

Endoscopy Ultrasound is an endoscopy and ultrasound that can be performed at the same time. The ultrasound is made small and attached to the end of the endoscope and inserted directly into the digestive organs. You can observe it in detail.

On the other hand, it is possible to infer the diagnosis with the characteristic shape of each disease in various image examinations, including ultrasound, CT, MRI, but the basic diagnosis is a pathological examination of the tissue under a microscope. It is true that there is a possibility of misdiagnosis because diagnosing a particular disease based on the image or clinical symptoms is based on the treatment guidelines for each disease.

Recently, fine-needle aspiration (FNA) has been widely used to collect tissues or cells using a needle while looking at the endoscopy, and to make a diagnosis based on the shape of the tissues or cells. When using an endoscopic ultrasound, the operator can directly observe that the fine needle is correctly inserted into the affected part, so that the correct procedure is possible.

However, a disadvantage of the fine needle aspiration test is that the amount of tissue or cells obtained is not sufficient because the fine needle is used. In order to overcome this disadvantage, two or three fine needle aspirations are repeatedly performed, resulting in fatigue and discomfort of the operator as well as the subject.

The present invention provides a needle for endoscopy fine needle aspiration test having an improved tissue harvesting power is formed so as to scrape the tissue during both the forward movement and the backward movement after being inserted into the human tissue.

Endoscopic ultrasonic fine needle aspiration test needle of the present invention for solving the above problems to form a tissue collection groove in the left and right symmetrical with respect to the diameter line passing through the main body, the front end portion formed on one side of the main body and the longitudinal central axis of the main body, Tissue collecting blades are formed on both sides of the tissue collecting groove, and at least one side of both sides of the tissue collecting groove forms a tissue collecting blade having a shape branching to both sides based on a radial line passing through the longitudinal central axis of the main body. Includes one tissue collection unit.

On the other hand, the tissue collecting unit, it is possible to form a serrated tissue collecting blade on at least one side of both sides of the tissue collecting groove.

In addition, the tissue collection portion is formed diagonally with respect to the width direction of the main body on both sides of the tissue collection groove to form a Y-shaped branching to both sides on the basis of the diameter line passing through the longitudinal central axis of the main body and face each other To form a tissue harvesting blade.

In addition, the tissue collecting portion, the first tissue collecting blade of the planar shape having an accommodating groove on one side of the tissue collecting groove, and can form a second toothed tissue collecting blade on the other side of the tissue collecting groove. have.

In addition, the tissue collecting portion, forming the first tissue collecting blade forming a straight line with respect to the width direction of the main body, cut diagonally with respect to the width direction of the main body to pass through the longitudinal axis of the longitudinal direction of the main body It is possible to form the second tissue harvesting blade forming a Y-shaped branching to both sides as a reference.

In addition, the tissue collecting portion is formed in an inverted Y shape that is cut diagonally with respect to the width direction of the main body on one side of the tissue collecting groove and branched to both sides on the basis of the diameter line passing through the longitudinal central axis of the main body A Y-shaped blade forming the first tissue collecting blade, and is cut diagonally with respect to the width direction of the main body on the other side of the tissue collecting groove and branched to both sides on the basis of the diameter line passing through the longitudinal central axis of the main body. By forming a sawtooth-shaped second tissue harvesting blade, the first tissue harvesting blade and the second tissue harvesting blade may be formed to face each other.

In addition, the tissue harvesting unit, the first tissue harvesting blade and the scraping to collect the tissue when the body is placed close to the front end of the tissue harvesting blades formed on both sides of the tissue harvesting groove is moved back; When the main body is placed far away from the front end and the body is moved forward may form a second tissue harvesting blade to scrape and collect the tissue.

The tip portion may form a head portion having a circular cross section, and may form a sharp portion bent from the head portion.

According to the present invention, since the tissue can be scraped and collected during both the forward movement and the backward movement after insertion into human tissue, the time required for tissue collection can be shortened. Thus, as well as the operator can eliminate the fatigue and discomfort of the subject.

1 is a view illustrating a state in which the needle for endoscopy fine needle aspiration test according to the present invention is mounted on an endoscope ultrasound biopsy instrument.
Figure 2 is a view showing a portion of the endoscope ultrasound fine needle aspiration needle in accordance with an embodiment of the present invention.
FIG. 3 is a view illustrating a shape viewed from the direction A of FIG. 2.
4 is a view illustrating a shape viewed from the direction B of FIG. 2.
FIG. 5 is a view illustrating an example in which the center support part illustrated in FIG. 2 is formed in another shape.
Figure 6 is a view showing a portion of the endoscope ultrasound fine needle aspiration test in accordance with another embodiment of the present invention.
7 is a view showing a portion of the endoscope ultrasonic fine needle aspiration test according to another embodiment of the present invention.

DETAILED DESCRIPTION OF THE INVENTION The following detailed description of the invention refers to the accompanying drawings that show, by way of illustration, specific embodiments in which the invention may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention. It is to be understood that the various embodiments of the invention are different but need not be mutually exclusive. For example, certain shapes, structures, and characteristics described herein may be embodied in other embodiments without departing from the spirit and scope of the invention in connection with one embodiment. In addition, it is to be understood that the location or arrangement of individual components within each disclosed embodiment may be changed without departing from the spirit and scope of the invention. The following detailed description, therefore, is not to be taken in a limiting sense, and the scope of the present invention is defined only by the appended claims, along with the full scope of equivalents to which such claims are entitled. Like reference numerals in the drawings refer to the same or similar functions throughout the several aspects.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the drawings.

1 is a view illustrating a state in which the needle for endoscopy fine needle aspiration test according to the present invention is mounted on an endoscopy ultrasound biopsy instrument.

Referring to Figure 1, the endoscopic ultrasonic fine needle aspiration needle (hereinafter, the needle) 1 may be mounted on the endoscopic ultrasonic biopsy instrument (2).

The needle 1 according to the present invention can be introduced into tissue by an endoscopic ultrasound biopsy instrument 2. The operator can accurately insert the needle 1 into the tissue while checking the monitor using an endoscopic ultrasound.

Needle 1 according to the present invention can be collected by scraping the tissue as it is moved forward or backward in the state put into the tissue. The operator can reciprocate the needle 1 using the endoscope ultrasonic biopsy instrument 2 as a handle while checking the monitor using the endoscope ultrasound.

The needle 1 according to the present invention may be formed to scrape and collect the tissue during both the forward movement and the backward movement in the process of reciprocating in the state inserted into the tissue. Therefore, the time required for tissue collection during the fine needle aspiration test can be shortened, thereby eliminating the fatigue and discomfort of the operator as well as the subject.

Figure 2 is a view showing a portion of the endoscope ultrasound fine needle aspiration needle in accordance with an embodiment of the present invention.

Referring to Figure 2, the needle 1 according to an embodiment of the present invention includes a main body 10, the front end portion 20 formed on one side of the main body 10 and the tissue collecting portion 30 to scrape the tissue can do.

The main body 10 may be a long tubular cross section of a garden. The main body 10 may be formed of a nonmagnetic metal so as to prevent malfunction of ultrasonic waves when used together with the endoscopic ultrasound.

The main body 10 may have a sharp tip portion 20 formed on one side thereof. The main body 10 may be processed in a form suitable for being mounted on the endoscope ultrasound biopsy device 2 at the other side, and may be mounted to the endoscope ultrasound biopsy device 2. Thus, the main body 10 may penetrate human tissue through the sharp end portion 20 according to the operation of the endoscope ultrasound biopsy instrument 2, and may be reciprocated forward and backward in the state inserted into the tissue.

In the following description, moving the main body 10 in the direction of the tip portion 20 is defined as forward movement, and moving in the opposite direction is defined as rearward movement.

Tip portion 20 may be formed on one side of the body (10). Tip portion 20 may be formed in a sharp shape so that the main body 10 can easily penetrate the human tissue.

3 is a view illustrating a shape viewed from the direction A of FIG. 2, and FIG. 4 is a view illustrating a shape viewed from the direction B of FIG. 2.

3 and 4, the tip portion 20 may be formed in a conical shape including a head portion 21 and a pointed portion 23 bent from the head portion 21.

The head portion 21 has a circular cross section, and the pointed portion 23 may be bent in a steep slope from the head portion 21.

The tip portion 20 is formed in a pointed cone shape by the head portion 21 and the pointed portion 23 to easily penetrate the human tissue.

2 to 4, if the front end portion 20 is a sharp shape that can easily penetrate the human tissue, it may be provided in various forms, such as including an inclined surface one side is cut obliquely.

Tissue harvesting unit 30 may be formed along the longitudinal direction of the main body (10). The tissue collection unit 30 may include a tissue collection groove 31 formed along the longitudinal direction of the main body 10 and tissue collection blades 33 and 35 formed at both sides of the tissue collection groove 31.

Tissue harvesting groove 31 is formed on the main wall of the main body 10, it may be formed in a left-right symmetric with respect to the diameter line passing through the longitudinal central axis of the main body 10. The tissue collection groove 31 provides a space where the tissue collection blades 33 and 35 can contact the tissue, so that the tissue can be scraped by the tissue collection blades 33 and 35. For example, the center support portion 38 may have a predetermined circumferential surface on a diameter line passing through the central axis of the main body 10. Tissue collecting groove 31 may be formed as a groove in the axial direction from the outer peripheral surface of the main body 10 to the central support portion 38.

On the other hand, Figure 5 is a view showing an example in which the central support shown in Figure 2 is formed in a different shape.

Referring to FIG. 5, the center support 39 may be formed to have a predetermined thickness along the outer circumferential surface of the main body 10, as shown in FIG. 2. That is, the central support portion 39 may not be formed over the entire diameter line passing through the central axis of the main body 10, but may be formed only on portions of both sides of the diameter line.

Tissue harvesting blade (33, 35) may be formed in a symmetrical form on both sides of the tissue harvesting groove (31). Alternatively, the tissue harvesting blades 33 and 35 may be formed in an asymmetrical form on both sides of the tissue harvesting groove 31. A detailed description in this regard will be described later with reference to FIGS. 6 and 7.

Tissue sampling blades 33 and 35 may be formed to face each other on both sides of the tissue collection groove (31).

Tissue taking blades (33, 35) is the main wall of the main body 10 is cut diagonally with respect to the width direction of the main body 10 is branched to both sides on the basis of the diameter line passing through the longitudinal central axis of the main body 10 It may be formed to form a shape.

Specifically, among the tissue harvesting blades 33 and 35 formed on both sides of the tissue collecting groove 31, the first tissue collecting blade 33 positioned close to the tip 20 is provided with a tip 20 as shown in FIG. 3. When disposed upwards, it may be formed to form an inverted Y shape. The first tissue harvesting blade portion 33 may be formed on both sides based on a diameter line passing through the longitudinal central axis of the main body 10. The first tissue collection blade portion 33 is formed in a diagonal shape having an angle of about 30 degrees or more and 60 degrees or less, for example, 45 degrees downward on the basis of a diameter line passing through the central axis in the longitudinal direction of the main body 10 as a whole. It may be formed to form an inverted Y shape.

Among the tissue collection blades 33 and 35 formed on both sides of the tissue collection groove 31, the second tissue collection blade 35 positioned far from the tip portion 20 has the tip portion 20 disposed upward as shown in FIG. 3. In this case, it may be formed to form a Y shape. The second tissue collecting blade part 35 may be formed at both sides on the basis of a diameter line passing through the central axis in the longitudinal direction of the main body 10. The second tissue collecting blade part 35 is formed in a diagonal shape having an angle of about 30 degrees or more and 60 degrees or less, for example, 45 degrees upwards based on a diameter line passing through the central axis in the longitudinal direction of the main body 10 as a whole. It may be formed to form a Y-shape.

At least a portion of the tissue collecting grooves 31 may be formed in the sampling space G for storing the scratched tissue by the Y-shaped tissue collecting blades 33 and 35.

Tissue taking blades (33, 35) may be formed in a sharp jagged shape to scrape the tissue. Alternatively, the tissue collection blades 33 and 35 may be formed in a planar blade shape.

Such tissue collection unit 30 can scrape the tissue through the tissue collection blades 33 and 35 according to the reciprocating movement of the main body 10 inserted into the human tissue, and the scraped tissue tissue collection blade 33, 35) and can be collected in the space (G) formed by the tissue collection groove (31).

For example, when the main body 10 moves backward, the first tissue collecting blade part 33 can scrape and collect the tissue.

In addition, when the main body 10 moves forward, the second tissue collecting blade part 35 may scrape and collect the tissue.

As such, the needle 1 according to an embodiment of the present invention can be collected by scraping the tissue during both the forward movement and the backward movement after being inserted into the human tissue, thereby reducing the time required for tissue collection. . Thus, as well as the operator can eliminate the fatigue and discomfort of the subject.

Figure 6 is a view showing a part of the endoscope ultrasonic fine needle aspiration test according to another embodiment of the present invention.

Endoscopy fine needle aspiration test needle (1 ') according to another embodiment of the present invention is compared to the needle (1) shown in Figure 2, there is a difference in the shape of the tissue collection portion 30' same. Therefore, in the following description, only the tissue collection unit 30 'will be described, and the description of other components will be replaced with the above description.

Referring to FIG. 6, the tissue collection unit 30 ′ may be formed along the longitudinal direction of the main body 10. The tissue collection unit 30 ′ may include a tissue collection groove 31 formed along the longitudinal direction of the main body 10 and tissue collection blades 32 and 35 formed on both sides of the tissue collection groove 31. .

Tissue harvesting groove 31 is formed on the main wall of the main body 10, it may be formed in a left-right symmetric with respect to the diameter line passing through the longitudinal central axis of the main body 10. The tissue collecting groove 31 provides a space where the tissue collecting blades 32 and 35 can contact the tissue, thereby enabling the tissue to be scratched by the tissue collecting blades 32 and 35.

Tissue harvesting blades 32 and 35 may be formed in an asymmetrical form on both sides of the tissue harvesting groove (31).

The first tissue harvesting blade portion 32 positioned close to the distal end portion 20 of the tissue collecting blade portions 32 and 35 formed on both sides of the tissue collecting groove 31 has a main body 10 with respect to the width direction of the main body 10. The main wall of the can be cut in a straight line, it may be formed to form a straight line with respect to the width direction of the main body 10. The first tissue collection blade 32 may have a receiving groove (S) for storing the scratched tissue.

The first tissue collection blade 32 may be formed in a planar blade shape to scrape the tissue. Alternatively, the first tissue harvesting blade 32 may be formed in a sawtooth shape.

Among the tissue collecting blades 32 and 35 formed on both sides of the tissue collecting groove 31, the second tissue collecting blade 35 positioned far from the tip portion 20 is the main body 10 with respect to the width direction of the main body 10. The main wall of the can be formed to form a Y-shaped branched to both sides on the basis of the radial line passing through the longitudinal central axis of the main body 10 is cut diagonally.

The second tissue collecting blade part 35 may be formed at both sides on the basis of a diameter line passing through the central axis in the longitudinal direction of the main body 10. When the distal end portion 20 is disposed upward, the second tissue collection blade part 35 is approximately 30 degrees or more and 60 degrees or less upward, based on a diameter line passing through the longitudinal central axis of the main body 10, for example, 45 degrees. It may be formed in a diagonal shape having an angle to form a Y-shape as a whole.

At least a portion of the tissue collecting grooves 31 may be formed by the second tissue collecting blade part 35 to form a collecting space G for storing the scratched tissue.

The second tissue collection blade 35 may be formed in a sharp sawtooth shape to scrape the tissue. Alternatively, the second tissue collection blade 35 may be formed in a planar blade shape.

Such tissue collection unit 30 'can scrape the tissue through the tissue collection blades 32 and 35 according to the reciprocating movement of the main body 10 inserted into the human tissue, and the scraped tissue to the first tissue collection blade Can be collected in the space (G) formed by the accommodation groove (S) or the second tissue collection blade (35) and the tissue collection groove (31) formed in the (32).

Endoscopic ultrasonic fine needle aspiration needle (1 ') according to another embodiment of the present invention can also be mounted to the endoscopy ultrasonic biopsy instrument (2), as shown in Figure 1, the tissue by the endoscopic ultrasonic biopsy instrument (2) The tissue may be scraped and collected as it is moved forward or backward in the state of being injected.

7 is a view showing a portion of the endoscope ultrasonic fine needle aspiration test according to another embodiment of the present invention.

Endoscopy fine needle aspiration needle (1 ″) according to another embodiment of the present invention is compared to the needle (1) shown in Figure 2, there is only a difference in the shape of the tissue collection portion (30 '') The other configuration is the same. Therefore, in the following description, only the tissue collection unit 30 '' will be described, and the description of other components will be replaced with the above description.

Referring to FIG. 7, the tissue collection unit 30 may be formed along the longitudinal direction of the main body 10. The tissue collecting unit 30 may include a tissue collecting groove 31 formed along the longitudinal direction of the main body 10 and tissue collecting blades 34 and 35 formed at both sides of the tissue collecting groove 31.

Tissue harvesting groove 31 is formed on the main wall of the main body 10, it may be formed in a left-right symmetric with respect to the diameter line passing through the longitudinal central axis of the main body 10. The tissue collecting groove 31 provides a space where the tissue collecting blades 34 and 35 can contact the tissue, so that the tissue can be scratched by the tissue collecting blades 34 and 35.

Tissue harvesting blades 34 and 35 may be formed in an asymmetrical form on both sides of the tissue harvesting groove (31). On the other hand, tissue collection blades 34 and 35 may be formed to face each other on both sides of the tissue collection groove (31).

Tissue sampling blades (34, 35) is the main wall of the main body 10 is cut diagonally with respect to the width direction of the main body 10 is branched to both sides on the basis of the diameter line passing through the longitudinal central axis of the main body (10) It may be formed to form a Y-shape.

Specifically, the first tissue collecting blade portion 34 which is located close to the tip portion 20 among the tissue collecting blade portions 34 and 35 formed on both sides of the tissue collecting groove 31 has the tip portion 20 disposed upward. In the case of forming an inverted Y shape. The first tissue collection blade portion 34 may be formed at both sides on the basis of a diameter line passing through the longitudinal central axis of the main body 10. The first tissue collection blade portion 34 is formed in a diagonal shape having an angle of about 30 degrees or more and 60 degrees or less, for example, 45 degrees downward on the basis of the diameter line passing through the longitudinal central axis of the main body 10 as a whole. It may be formed to form an inverted Y shape.

Among the tissue collecting blades 34 and 35 formed on both sides of the tissue collecting groove 31, the second tissue collecting blade 35 positioned far from the tip portion 20 has a Y shape when the tip portion 20 is disposed upward. It can be formed to achieve. The second tissue collecting blade part 35 may be formed at both sides on the basis of a diameter line passing through the central axis in the longitudinal direction of the main body 10. The second tissue collecting blade part 35 is formed in a diagonal shape having an angle of about 30 degrees or more and 60 degrees or less, for example, 45 degrees upwards based on a diameter line passing through the central axis in the longitudinal direction of the main body 10 as a whole. It may be formed to form a Y-shape.

However, the first tissue collection blade 34 may be formed in a planar blade shape to scrape the tissue. Unlike the first tissue collection blade 34, the second tissue collection blade 35 may be formed in a sawtooth shape so as to scrape the tissue.

At least a portion of the tissue collecting grooves 31 by the tissue collecting blades 34 and 35 may form a collecting space G for storing the scratched tissue.

Such tissue collection unit 30 ″ may scrape the tissue through the tissue collection blades 34 and 35 according to the reciprocating movement of the body 10 inserted into the human tissue, and the scraped tissue may be scraped from the tissue collection blade ( 34, 35 and can be collected in the space (G) formed by the tissue collection groove (31).

Endoscope ultrasonic fine needle aspiration needle (1 ″) according to another embodiment of the present invention can also be mounted to the endoscopy ultrasonic biopsy instrument (2), as shown in Figure 1, The tissue can be scraped and collected as it is moved forward or backward in the state injected into the tissue.

Although the above has been described with reference to the embodiments, those skilled in the art will understand that various modifications and changes can be made without departing from the spirit and scope of the invention as set forth in the claims below. Could be.

1: Endoscopic Ultrasound Fine Needle Aspiration Needle
2: Endoscopic Ultrasound Biopsy Instrument
10: main body
20: tip
21: head part
23: Pointy
30: tissue collection
31: Organizational Collection Home
33: First tissue collection date
35: second tissue collection date
38: center support
G: collection space

Claims (8)

main body;
A tip portion formed at one side of the main body; And
Form a tissue collecting groove in the left and right symmetrical form based on the radial line passing through the longitudinal central axis of the main body, and forming a tissue collecting blade on both sides of the tissue collecting groove, at least one side of both sides of the tissue collecting groove An endoscopy fine needle aspiration examination needle comprising a tissue collecting portion forming a tissue extracting blade forming a bifurcated shape on the basis of the diameter line passing through the longitudinal central axis. The method of claim 1,
The tissue collection unit,
Endoscope ultrasonic fine needle aspiration test to form a tooth-shaped tissue collecting blade on at least one side of both sides of the tissue collection groove. The method of claim 2,
The tissue collection unit,
Forming tissue collecting blades facing each other to form a Y-shape that is cut diagonally with respect to the width direction of the main body on both sides of the tissue collecting groove and branched to both sides based on the radial line passing through the longitudinal central axis of the main body Endoscopic ultrasound fine needle aspiration test. The method of claim 1,
The tissue collection unit,
An endoscope ultrasonic fine needle aspiration test needle for forming a first planar tissue-shaped blade having a receiving groove on one side of the tissue collecting groove, the second tissue collecting blade of the sawtooth shape on the other side of the tissue collecting groove. The method of claim 4, wherein
The tissue collection unit,
Forming the first tissue extracting blade portion forming a straight line with respect to the width direction of the main body, is cut diagonally with respect to the width direction of the main body and branched to both sides on the basis of the diameter line passing through the longitudinal central axis of the main body Endoscopic ultrasonic fine needle aspiration test forming the second tissue collection blade forming a Y-shape. The method of claim 1,
The tissue collection unit,
One side of the tissue collecting groove is diagonally cut in the width direction of the main body to form an inverted Y shape branched to both sides based on a radial line passing through the central axis in the longitudinal direction of the main body, and the first tissue collecting of the planar shape The blade portion is formed, and the other side of the tissue collecting groove is cut diagonally with respect to the width direction of the main body to form a Y-shaped branching to both sides on the basis of the diameter line passing through the longitudinal central axis of the main body and saw-shaped 2. A needle for endoscopic ultrasonic fine needle aspiration testing to form a tissue collection blade, the first tissue collection blade and the second tissue collection blade to face each other. The method of claim 1,
The tissue collection unit,
The first tissue harvesting blade and the far away from the tip of the tissue harvesting blades formed on both sides of the tissue harvesting groove is located close to the front end and the main body injected into the tissue is moved back and the tissue is collected Endoscope ultrasonic fine needle aspiration test needle to form a second tissue harvesting blade to scrape and collect the tissue when the main body is moved forward. The method of claim 1,
The tip portion,
An endoscope ultrasonic fine needle aspiration test needle for forming a head portion having a circular cross section and forming a point portion bent from the head portion.

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