KR101511299B1 - Guiding apparatus for biopsy needle - Google Patents

Abstract

The present invention relates to a biopsy needle guide device, comprising: a guide module for guiding a line guide beam to a biopsy object placed on a table so that a biopsy needle aligns with a biopsy object; Wherein when the biopsy needle is aligned at an entry angle, the guide module is moved relative to the table such that a linear guide beam is applied to a surface located on a side opposite to the guide module with respect to the table so as to form a linear guide beam on the side of the biopsy needle A guide module positioned; And a transfer module for adjusting the position of the guide module. .

Description

{GUIDING APPARATUS FOR BIOPSY NEEDLE}

This disclosure generally relates to a biopsy needle guide device, and more particularly to a biopsy needle guide device that guides a biopsy needle with a linear guide beam.

Herein, the background art relating to the present disclosure is provided, and these are not necessarily meant to be known arts.

CT-Based Biopsy is an interventional procedure that minimizes damage to surrounding normal tissues and extracts the specimens necessary for the pathological diagnosis of neoplastic disease. It is widely applied to areas such as the retroperitoneum of the lymph nodes, the lung mediastinum, the vertebra, and the limb.

CT-based biopsy can be used to localize the lesion three-dimensionally using a high-resolution image and to detect a biopsy needle that enters the tissue, making it easy to detect small-sized lesions. CT-based biopsies are superior to lesions in which tissue is superimposed over ultrasound or x-ray fluoroscopy. In addition, the CT-based biopsy shows the relationship with surrounding tissues, so that the clinician can easily set the route of the lesion and can perform the procedure at various patient positions.

In the CT-based biopsy, the angle of entry of the biopsy needle into the patient's body is important. During CT-based biopsy, the operator adjusts the biopsy needle, and the assistant uses the protractor to judge the angle of the biopsy needle in the eyes to guide the operator.

Therefore, it is difficult to accurately and safely enter the biopsy needle to the desired site, and there is a problem that the CT photographing repetition, the examination time, and the radiation exposure are increased due to the error caused by the guide in the eyes of the assistant.

This will be described later in the Specification for Implementation of the Invention.

SUMMARY OF THE INVENTION Herein, a general summary of the present disclosure is provided, which should not be construed as limiting the scope of the present disclosure. of its features).

According to one aspect of the present disclosure, in a biopsy needle guide apparatus, a biopsy needle is irradiated to a biopsy object placed on a table in a linear guide beam, A guiding module for guiding the alignment of the biopsy needle to an entry angle with the object to be inspected, the guiding module being adapted to guide the biopsy needle A guide module positioned with respect to the table such that a linear guide beam is irradiated on a surface of the guide module; And a transfer module for adjusting the position of the guide module.

This will be described later in the Specification for Implementation of the Invention.

1 is a view showing an example of a biopsy needle guide apparatus according to the present disclosure,
2 is a diagram showing an example of a method by which a practitioner aligns a biopsy needle based on a linear guide beam,
FIG. 3 is a view showing the biopsy needle guide apparatus shown in FIG. 1,
4 is a diagram showing an example of a plurality of linear laser generators,
FIG. 5 is a view showing the biopsy needle guide apparatus shown in FIG. 3,
FIG. 6 is a view showing the biopsy needle guide apparatus shown in FIG. 5,
Figures 7 and 8 illustrate examples of linear guide beams that guide alignment of a biopsy needle,
9 is a view showing another example of the biopsy needle guide apparatus according to the present disclosure;

The present disclosure will now be described in detail with reference to the accompanying drawings.

FIG. 1 is a view showing an example of a biopsy needle guide apparatus according to the present disclosure, and FIG. 2 is a view showing an example of a method by which a practitioner aligns a biopsy needle on the basis of a linear guide beam.

The biopsy needle guide apparatus 100 is movably arranged around a CT table 7 located in front of a CT gantry 5. [

The biopsy needle guide apparatus 100 is configured to illuminate a line guide beam 141, 142, 143 on a biopsy target (e.g., a human being, an animal) 10 so that a biopsy needle 300 is placed on the biopsy target 10 ) And an entry angle (A). The entry angle A is an angle calculated so that the biopsy needle 300 reaches a lesion such as cancer tissue safely and accurately avoiding a person's ribs or the like. The entry angle (A) is calculated from the CT photograph data and the like. The linear guide beams 141, 142, 143 from which the biopsy needle guide apparatus 100 exits are typically linear lasers. The biopsy needle guide apparatus 100 can select one, two, three, or more linear guide beams 141, 142, and 143.

The biopsy needle guide apparatus 100 is configured to be movable around the CT table 7. Therefore, the biopsy needle guide apparatus 100 may be positioned at the head of the CT table 7, and may face the front surface of the CT gantry 5 or the CT table 7 side. The linear guide beams 141, 142 and 143 can be formed in various directions on the biopsy object 10 positioned on the CT table 7 and can guide the various approach angles A of the biopsy needle 300.

The linear guide beams 141, 142 and 143 projected in a vertical plane perpendicular to the biometric object 10 are formed to have an entry angle A with the biometric object 10. Therefore, the biopsy needle 300 aligned in parallel with the linear guide beams 141, 142 and 143 has an entering angle A with the biopsy target 10.

The entry angle A is measured on the basis of a horizontal plane (for example, a CT table plane). The fact that the biopsy object 10 and the biopsy needle 300 or the linear guide beams 141,142 and 143 form the entry angle A indicates that the biopsy needle 300 or the linear guide beams 141,142 and 143 have an entry angle A with respect to the horizontal plane, . Also, the fact that the vertical surface is perpendicular to the biopsy target 10 means that the CT table surface and the vertical surface are perpendicular to each other.

Referring to Fig. 1, the front face of the CT gantry 5 is substantially perpendicular to the subject 10 on the CT table 7. The linear guide beams 141, 142 and 143 reflected on the front surface of the CT gantry 5 are formed so as to form an entry angle A with the biopsy target 10.

Referring to FIG. 2, the practitioner 15 aligns the biopsy needle 300 with the linear guide beams 141, 142, and 143 provided by the biopsy needle guide apparatus 100. At this time, the linear guide beams 141, 142, 143 are displayed on the side of the biopsy needle 300 and the biopsy needle 300 is aligned with the linear guide beams 141, 142, 143. The operator 15 adjusts the biopsy needle 300 in accordance with the guide of the biopsy needle guide device 100 to the biopsy object 10 lying on the CT table 7 accurately, .

Hereinafter, the configuration of the biopsy needle guide apparatus 100 will be described in detail.

3 is a view showing the biopsy needle guide apparatus shown in FIG.

The biopsy needle guide apparatus 100 includes a guide module 110 and a transfer module 160. The guide module 110 emits the linear guide beams 141, 142 and 143 and the transfer module 160 transfers the guide module 110 to adjust the vertical and horizontal positions.

The guide module 110 includes, for example, a rotation plate 120 and a plurality of linear laser generators 131, 132, and 133. The plurality of linear laser generators 131, 132 and 133 are fixed to the rotary plate 120 and receive power from the batteries 190 to emit linear guide beams (e.g., linear lasers) 141, 142 and 143, respectively. When the rotation angle of the rotation plate 120 is zero, a plurality of linear laser generators 131, 132 and 133 are coupled to the rotation plate 120 such that the angle formed by the linear guide beams 141, 142 and 143 with the horizontal plane becomes zero. At least one side of the rotation plate 120 may be a reference for measuring the rotation angle of the guide module 110. Thus, at least one side of the rotating plate 120 is formed in a straight line.

4 is a diagram showing an example of a plurality of linear laser generators.

The plurality of linear laser generators 131, 132 and 133 are arranged so that their centers are on different lines. Therefore, the plurality of linear guide beams 141, 142, and 143 are formed so as to be parallel to each other without overlapping each other. The intervals of the plurality of linear guide beams 141, 142 and 143 can be changed by changing the intervals of the plurality of linear laser generators 131, 132 and 133.

When the biopsy needle 300 is aligned at the entry angle A, the linear guide beams 141, 142 and 143 are formed in parallel to the lengthwise direction of the biopsy needle 300 on the side of the biopsy needle 300. Accordingly, it is preferable that the interval between the plurality of linear laser generation units 131, 132, 133 is limited so that a plurality of linear guide beams 141, 142, 143 can be formed on the side of the biopsy needle 300. For example, the plurality of laser generators 131, 132, and 133 are arranged at intervals (unit: mm) as shown in FIG.

5 is a view showing the biopsy needle guide apparatus shown in FIG.

The transfer module 160 may be configured to vary the position of the guide module 110. For example, the transfer module 160 includes a vertical transfer section 165 and a horizontal transfer section 150, as shown in FIG.

The vertical transfer unit 165 moves up and down to adjust the height of the guide module 110. The vertical transfer portion 165 may include a motor for moving the shaft and the shaft up and down.

The horizontal transfer unit 150 is coupled to the vertical transfer unit 165 and regulates the horizontal movement of the guide module 110. The horizontal transfer unit 150 includes a horizontal rail 151 and a connection unit 155. The connecting portion 155 is installed on the horizontal rail 151 and moves along the horizontal rail 151 by a driving means such as a motor.

The connecting portion 155 includes a rotating shaft 157, and the rotating plate 120 is rotatably coupled to the rotating shaft 157. The rotary shaft 157 may be configured to be automatically rotated in accordance with an input rotation angle or may be manually configured to be rotated by the force of the operator.

The biopsy needle guide apparatus 100 includes a goniometer 170. The goniometer 170 may be moved with the guide module 110 or may be fixed to the transfer module 160 independently of the guide module 110. 3 and 5 illustrate a biopsy needle guide device 100 in which a goniometer 170 is coupled to a connection part 155 and is horizontally moved together with the guide module 110. The rotation plate 120 of the guide module 110 rotates with respect to the goniometer 170 and the lower surface of the rotation plate 120 indicates the rotation angle in the goniometer 170 (see FIG. 3).

The biopsy needle guide apparatus 100 may include a leveling system 180. The horizontal scale 180 is installed in the conveyance module 160 and shows the horizontal state of the horizontal conveyance part 150.

FIG. 6 is a view showing the biopsy needle guide apparatus shown in FIG. 5. FIG.

On the other hand, a rectangular area in which the linear guide beams 141, 142 and 143 are not visible due to the bending of the subject 10 may occur. The height of the guide module 110 may be increased so that a rectangular area may not occur or may be minimized. Therefore, it is preferable that the vertical conveyance unit 165 is configured to sufficiently raise the height of the guide module 110. 6, it is preferable that the guide module 110 be inclined toward the biopsy target 10 by the inclination angle B so as to irradiate the linear guide beams 141, 142, and 143.

Therefore, as shown in FIGS. 5 and 6, it is preferable that the horizontal transfer unit 150 is rotatably mounted to the CT table 7 by being rotated relative to the vertical transfer unit 165. When the horizontal transfer unit 150 is rotated and tilted toward the CT table 7, the guide module 110 also irradiates the linear guide beams 141, 142, and 143 in a tilted state toward the biopsy target 10. Therefore, it is possible to almost eliminate the square caused by the curvature of the subject 10 to be inspected.

On the other hand, if the guide module 110 is tilted toward the patient, the rotation angles of the linear guide beams 141, 142 and 143 reflected on the front surface of the CT gantry 5 may differ from the initially calculated entrance angle A '. However, if the inclination angle B of the horizontal conveyance unit 150 is set to be within a predetermined value, for example, within about 15 degrees, the difference can be controlled within an error tolerance range.

Figures 7 and 8 are illustrations of examples of linear guide beams that guide alignment of a biopsy needle.

As described above, the number of the linear guide beams 141, 142, and 143 can be changed according to the number of the linear laser generators 131, 132, and 133. In order for the biopsy needle 300 to be aligned with the entry angle A with respect to the biopsy object 10, it is preferable that the linear guide beams 141, 142 and 143 are projected on the side of the biopsy needle 300. Therefore, it is more advantageous to use a plurality of linear guide beams 141, 142 and 143 as shown in Fig. 8 than in the case of using one linear guide beam as shown in Fig.

The biopsy needle 300 also includes a body 310 and a needle 330. The specimen of the lesion tissue is extracted into the body 310 through the needle 330.

It is particularly important that the needle 330 is located at the entry point of the biopsy target 10 and is disposed at the entry angle A. Therefore, it is preferable to guide the needle 330 accurately and conveniently by forming the linear guide beam 142 located at the center thereof in a color different from that of the remaining linear guide beams 141 and 143.

For example, the middle linear guide beam 142 is a green laser and the remaining linear guide beams 141 and 143 are red laser beams. The linear green laser generating portion 131 may have a specification of, for example, a wavelength of 532 nm, a beam diameter of 2.0 mm, an input voltage of 3 V, and a size of 12 mm x 50 mm.

Meanwhile, the guide module 110 may blink part of the plurality of linear guide beams 141, 142 and 143 to separate the remaining linear guide beams from the remaining linear guide beams. For example, the guide module 110 facilitates precisely and conveniently guiding the needle 330 by causing the two linear guide beams 141, 143 to flash or the middle linear guide beam 142 to flash .

As shown in FIG. 8, three linear guide beams 141, 142 and 143 are formed on the body of the biopsy needle 300 to guide the biopsy needle 300 to be aligned at an entry angle A, Are aligned with the entry angle A at the entry point exactly in line with the green linear guide beam 142 in the middle.

According to the method of guiding the biopsy needle 300 in the direction of the back surface of the biopsy needle 300 with a point laser beam different from the biopsy needle guide apparatus 100 according to the present disclosure, It is not convenient to adjust to the point laser beam and it takes time. Further, in the case of the point laser guide method, after the needle enters the biopsy object 10, it is difficult to directly check whether the end of the needle is positioned on the straight line with the point laser beam, which poses a problem in accuracy.

According to the biopsy needle guide apparatus 100 of the present disclosure, a plurality of linear guide beams 141, 142, and 143 are formed on the body of the biopsy needle 300 even after the needle enters the biopsy object 10. Therefore, both the entrance angle A of the biopsy needle 300 and the entrance of the biopsy needle 300 can be accurately and conveniently maintained both before and after the entry of the biopsy needle 300 into the biopsy object 10.

9 is a view showing another example of the biopsy needle guide apparatus according to the present disclosure.

The biopsy needle guide apparatus 1000 is substantially the same as the biopsy needle guide apparatus 100 described in FIGS. 1 to 8 except that it further includes a switch pedal 1850 and a circuit portion 1950. Therefore, redundant description is omitted.

The switch pedal 1850 allows the practitioner 15 to control the on and off of the linear guide beams 1141, 1142, and 1143 directly while performing next to the CT table 7. Therefore, the operator 15 can select the point of time when the guide of the biopsy needle 300 is necessary and the unnecessary point of time to turn on and off the linear guide beams 1141, 1142, and 1143. In addition, the linear guide beams 1141, 1142, and 1143 are advantageous in that the linear guide beams 1141, 1142, and 1143 are temporarily turned off when there is glare, thereby avoiding glare.

The connection wiring 1855 electrically connects the switch pedal 1850 and the guide module 1110. The switch pedal 1850 is installed under the foot of the practitioner 15. The practitioner 15 can step on the switch pedal 1850 to turn on and off the linear guide beams 1141, 1142, and 1143.

For example, the circuit portion 1950 is installed on the rear surface of the rotation plate 1120. The circuit portion 1950 can process the power supplied from the outside into a power source necessary for a plurality of laser generating portions. Further, the plurality of laser generators may be turned on and off according to an on / off signal transmitted from the switch pedal 1850.

Hereinafter, various embodiments of the present disclosure will be described.

(1) The guide module forms a linear guide beam on a CT gantry front face perpendicular to a CT table on which a biopsy object is placed.

(2) The biopsy needle guide device according to (2), wherein the guide module emits a plurality of linear guide beams arranged side by side.

(3) The biopsy needle guide apparatus according to any one of (1) to (3), wherein the color of some of the plurality of linear guide beams is different from the color of the remaining linear guide beams.

(4) The biopsy needle guide device according to (4), wherein a part of the plurality of linear guide beams is blinked to be distinguished from the remaining linear guide beams.

 (5) When the biopsy needle is aligned at an entry angle, the guide module forms a plurality of linear guide beams on the side of the biopsy needle.

The line widths of the plurality of linear guide beams may be different from each other. It is preferable that the linear guide beam located at the center guides the needles of the biopsy needle and the line width of the linear guide beam and the beam intensity at the center can be made different from those of other linear guide beams.

(6) The guide device of claim 1, wherein the guide module comprises a plurality of linear laser generators for emitting linear guide beams.

4, the gap between the plurality of linear laser generating units is shown as being fixed. However, it is also possible to provide a minute gap adjusting member between the rotating plate and the plurality of laser generating units so that the interval of the plurality of linear guide beams can be changed .

(7) The conveyance module includes a vertical conveyance part for vertically moving the guide module; And a horizontal transfer part for transferring the guide module to the left and right, and a guide module rotatably coupled to the guide module.

Various transfer modules can be implemented. Any configuration is possible as long as it can precisely control the horizontal, vertical or rotation of the guide module. For example, the conveying module may connect the freely flexing flexible member to the guide module without separately providing the vertical conveying portion and the horizontal conveying portion.

(8) The biopsy needle guide device according to any one of (1) to (5), wherein the horizontal transfer part is coupled with the vertical transfer part so as to be tilted toward the biopsy object placed on the CT table.

(9) a leveling system installed in the transport module; And a goniometer installed in the transfer module for measuring a rotation angle of the guide module.

Instead of a mechanical goniometer, a goniometer can be installed in the guide module.

(10) The guide module comprises a rotary plate rotatably coupled to the horizontal transfer part with respect to the goniometer, and horizontally moving together with the goniometer; And a plurality of linear laser generators installed on the rotating plate for emitting linear guide beams, respectively.

 (11) a biopsy needle guide device electrically connected to the guide module, the biopsy needle guide device being located on the floor around the CT table and turning the linear guide beam on and off by a practitioner.

According to one biopsy needle guide apparatus according to the present disclosure, a biopsy needle can be easily and accurately entered into a biopsy object at an entry angle, which is convenient for a practitioner and can be performed stably.

In addition, the procedure time is shortened, and the number of CT scans and the radiation dose are reduced.

In addition, there is no need for a procedure assistant to guide the angle of entry into the snow scene, thereby reducing the risk of infection.

According to another biopsy needle guide apparatus according to the present disclosure, the operator can more conveniently, safely and accurately perform the operation using the rotation angle and the switch pedal of the linear guide beam displayed on the CT screen.

100: biopsy needle guide device 5: CT gantry

Claims (12)

In the biopsy needle guide device,
A guide module for guiding a biopsy needle placed on a table with a linear guide beam to align the biopsy needle with an object to be inspected, the biopsy needle being aligned at an entry angle Wherein the guide module is positioned with respect to the table such that a linear guide beam is irradiated on a surface located on a side opposite to the guide module with respect to the table so as to form a linear guide beam on the side of the biopsy needle; And,
And a transfer module for adjusting the position of the guide module. The method according to claim 1,
Wherein the surface on the side opposite to the guide module with respect to the table is a CT gantry front face and the linear guide beam is irradiated on the front surface of the CT gantry at an entry angle. . The method according to claim 1,
Wherein the guide module emits a plurality of linear guide beams arranged in parallel with each other. The method of claim 3,
Wherein the color of some of the plurality of linear guide beams is different from the color of the remaining linear guide beams. The method of claim 3,
Wherein a portion of the plurality of linear guide beams is flickered so as to be separated from the remaining linear guide beams. The method according to claim 1,
Wherein when the biopsy needle is aligned at an entry angle, the guide module forms a plurality of linear guide beams on the side of the biopsy needle. The method according to claim 1,
Wherein the guide module comprises a plurality of linear laser generators for emitting linear guide beams, respectively. The method according to claim 1,
The feed module
A vertical transfer unit for vertically moving the guide module; And
And a horizontal conveyance part for rotatably coupling the guide module and for conveying the guide module to the left and right. The method of claim 8,
Wherein the horizontal transfer part is coupled to the vertical transfer part so as to be tilted toward the biopsy object placed on the CT table. The method of claim 8,
A leveling system installed in the transport module; And
And a goniometer installed on the transfer module for measuring a rotation angle of the guide module. The method of claim 10,
The guide module
A rotary plate rotatably coupled to the horizontal transfer section with respect to the goniometer and horizontally moving with the goniometer; And
And a plurality of linear laser generators provided on the rotating plate for emitting linear guide beams, respectively. The method according to claim 1,
And a switch pedal electrically connected to the guide module and positioned on the floor around the CT table for turning on and off the linear guide beam by stepping on the foot by the practitioner.

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