WO2010098549A2

WO2010098549A2 - Automatic cell-sucking device using a thin needle

Info

Publication number: WO2010098549A2
Application number: PCT/KR2010/000968
Authority: WO
Inventors: 김동석
Original assignee: Kim Dong Seok
Priority date: 2009-02-24
Filing date: 2010-02-17
Publication date: 2010-09-02
Also published as: WO2010098549A3; KR101079155B1; KR20100096305A

Abstract

The present invention relates to an automatic cell-sucking device using a thin needle, which can automatically suck cells in a uniform and reliable manner regardless of the personal skill of an operator during processes of sucking and extracting cells from tissue, and which can accurately discharge the required amount of the sucked and extracted cells. The automatic cell sucking device that uses a thin needle comprises: a sucker body (1) having a syringe holder portion (2) for holding a syringe cylinder (42), a space (3) connected to the syringe holder portion (2), and a sucker cap (30); an operating element (7) which has a cylinder handle groove (5) for coupling with a cylinder handle (43), and the outer surface of which has a male screw (6) to be fastened into a female thread (4) formed at an inner surface thereof, and which rotates and moves in the forward and backward directions by means of a first motor (8); a discharge operating element (13) which has a plunger handle groove (11) for coupling with a plunger handle (45) of the syringe, and which is installed together with a plunger handle sensor (12) in a space (10) formed in the operating element (7), and which is connected to a second motor (14) via screw gears (16, 17); a controller (15) for controlling operation of the first motor (8) and the second motor (14); and a first switch (20) and a second switch (21) for operating the first motor (8) and the second motor (14). The automatic cell-sucking device using a thin needle, according to the present invention, can automatically perform a series of sucking operations, thus sucking and extracting cells in a uniform and reliable manner regardless of the personal skill of the operator, and accurately discharging the required amount of the sucked and extracted cells, leading to enhanced reliability for cytoscopy. The automatic cell-sucking device of the present invention improves reliability for the overall process including cell suction and extraction, discharge, and cytoscopy.

Description

Automatic fine needle cell aspirator

The present invention relates to an automatic fine needle cell aspirator, and more particularly, uniformly and reliably regardless of the individual's skill of the operator in a series of processes of aspirating and extracting cells by puncturing tissue of the body with a needle coupled to a syringe body. The present invention relates to an automatic fine needle cell aspirator configured to be able to automatically suction extract cells and to accurately discharge the extracted cells by a required amount.

As is well known, a syringe is used as a means for performing a cell test. In this case, a needle is attached to the body of the body with a needle coupled to the syringe body, and the cells are sucked and extracted and smeared on a slide glass to perform a cell test.

Looking at a series of processes for aspirating the cells for the conventional cytology described above are as follows.

First, the cells are sucked and extracted by puncturing the tissue of the body with a needle coupled to the syringe body. The preliminary work for sucking and extracting the cells is performed by using a needle coupled to the syringe body to poke and rotate the body tissue. Repeat this several times to make the cells easier to aspirate. In this state, the plunger constituting the syringe is retracted to generate negative pressure inside the syringe cylinder, and the cells are sucked out.

However, in the case of aspirating and extracting the cells as described above, the operation pattern and intensity of puncturing and extracting the cells of the body with the needle vary according to the skill of the operator, and the number of repetitions is different. The degree will vary. Therefore, there is a disadvantage in that the cells can not be sucked and reliably extracted reliably.

On the other hand, in order to perform a cytology (cytoscopy), the plunger loaded in the syringe cylinder is pushed to discharge the cells extracted by the suction. At this time, since the discharge is determined by the senses and habits of the hand, the discharge varies with each test, such that the discharge becomes inconsistent.

Therefore, it is difficult to make a consistent diagnosis because the reliability of the cell test is inevitably reduced, and in some cases, the patient is repeatedly visited by visiting the patient once more.

The automatic fine needle cell aspirator of the present invention for solving the above problems is a series of processes in which the needle is coupled to the aspirator main body, and the needle and the needle are rotated and pulled out several times by using the needle. The purpose of the present invention is to provide an automatic fine needle cell aspirator that can reliably suck and extract cells irrespective of the individual skill of the operator.

In addition, by using the negative pressure generated by reversing the plunger constituting the syringe to automatically perform the process of aspirating and extracting the cells by the required amount, providing an automatic fine needle cell aspirator that can improve the reliability in the discharge of cells Has its purpose.

Automatic needle cell aspirator according to the present invention for achieving the above technical problem, the syringe holder portion to which the syringe is mounted in a state in which the hub is exposed from the body so that the cells are aspirated through the hub of the syringe and connected thereto A suction unit body having a suction unit cap for fixing a syringe inserted into the syringe holder unit; A cylinder handle groove is formed at the front end to engage the cylinder handle of the syringe. A rear screw is formed at the outer end of the rear end to form a male screw coupled to a female screw formed at a rear side of the inner circumferential surface of the syringe. An operating tool which is rotated and moved back and forth within the space part; A plunger handle groove is formed to which the plunger handle of the syringe is coupled, and is installed in a space provided inside the operating port together with a plunger handle detection sensor, and is discharged through an internal and external screw gear to a second motor installed in the space. An operating tool; And a controller for controlling the operation of the first motor and the second motor, and a first switch and a second switch for operating the first motor and the second motor.

According to the automatic fine needle cell aspirator of the present invention configured as described above, since a series of suction operations are performed automatically by the aspirator, using a needle of a syringe coupled to the aspirator body, the needle is turned and pulled out. Irrespective of the level of skill, there is an effect of uniformly and reliably aspirating cells.

In addition, according to the automatic fine needle cell aspirator of the present invention, even when the cells are aspirated and extracted by a syringe cylinder, the cells can be discharged accurately and reliably in a necessary amount, thereby increasing the reliability of the cytology. It is effective in increasing the reliability of the aspiration extraction and discharge of cells, and the overall results of cytology.

Figure 1 is a perspective view showing the overall configuration of the automatic fine needle cell aspirator according to the present invention

Figure 2 is a perspective view showing the internal configuration of the automatic fine needle cell aspirator according to the present invention

Figure 3 is a cross-sectional view showing the internal configuration of the automatic fine needle cell aspirator according to the present invention

Figure 4 is an exploded cross-sectional view of the internal structure of the automatic fine needle cell aspirator according to the present invention

*** Explanation of symbols for main parts of drawing ***

1: aspirator main body 2: syringe holder

3: space part 4: female screw

5: cylinder handle groove 6: male threaded screw

7: Actuator 8: First Motor

10: space part 11: plunger handle groove

12: Plunger handle detection sensor 13: discharge operation port

14: second motor 15: controller

16 and 17: internal and external screw gear 20: first switch

21: second switch 30: aspirator cap

40: needle 41: syringe

42: syringe cylinder 43: cylinder handle

44: plunger 45: plunger handle

46: hub

An example of a configuration related to an automatic fine needle cell aspirator according to the present invention will be described below in detail with reference to the accompanying drawings.

1 is a perspective view showing the overall configuration of the automatic fine needle cell aspirator according to the present invention, Figure 2 is a perspective view showing the internal structure of an automatic fine needle cell aspirator according to the present invention, Figure 3 is an internal configuration of an automatic fine needle cell aspirator according to the present invention 4 is a cross-sectional view showing the internal structure of the automatic fine cell aspirator according to the present invention.

The automatic fine needle cell aspirator according to the present invention includes a syringe (with the hub 46 exposed from the main body) to confirm that the cells are sucked through the hub 46 of the syringe 41 to which the needle 40 is connected. A syringe holder portion (2) on which 41 is mounted and a space portion (3) connected thereto are formed, and an aspirator provided with an aspirator cap (30) for fixing the syringe (41) inserted into the syringe holder portion (2) A main body 1; A cylinder handle groove 5 is formed at the distal end of which the cylinder handle 43 of the syringe 41 is coupled, and a male screw coupled to the female screw screw 4 formed at the inner circumferential side of the space portion 3 at the rear end outer circumferential surface thereof. An actuating mechanism (7) formed with six screws (6), which is rotated by the first motor (8) installed at the rear of the space portion (3) and moved back and forth within the space portion (3); The plunger handle groove 11 to which the plunger handle 45 of the syringe 41 is coupled is formed, and together with the plunger handle detection sensor 12 in the space portion 10 provided inside the operating port 7. It is installed, and the discharge operation port 13 connected to the second motor 14 installed in the space portion 10 through the inner and outer screw gears (16) (17); A controller 15 for controlling the operation of the first motor 8 and the second motor 14 and a first switch 20 and a first for operating the first motor 8 and the second motor 14, respectively. 2 switch 21; comprises a.

Here, the first switch 20 drives the first motor 8 and the second motor 14 at the same time, so that a negative pressure is generated inside the syringe cylinder 42, and the syringe 41 of the syringe 41. The forward and backward rotation and the left and right rotations are repeated, and the second switch 21 drives the second motor 14 to perform a discharge function.

In addition, the cylinder handle groove 5 and the plunger handle groove 11 are both formed in the inlet wider than the width of the cylinder handle 43 and the plunger handle 45, the cylinder handle 43 and the plunger handle 45 ) So that it can be easily mounted.

Referring to the action of the automatic fine needle cell aspirator of the present invention configured as described above in detail.

To aspirate and extract cells using the automatic fine needle cell aspirator according to the present invention, by opening the aspirator cap 30 and installing the syringe 41 inside the aspirator body 1 and closing the aspirator cap 30, Attach (41) to the aspirator.

Specifically, the syringe cylinder 42 to which the needle 40 is coupled is mounted on the syringe holder 2 formed in the aspirator main body 1. At this time, the cylinder handle 43 is coupled to the cylinder handle groove 5 formed in the operating port 7 and the plunger handle 45 is coupled to the plunger handle groove 11 of the discharge operation port 13. However, the hub 46 portion of the syringe cylinder 42 is exposed from the aspirator body 1 so that the suction state of the cells can be seen.

When the mounting of the syringe 41 is completed, the plunger handle detecting sensor 12 installed in the plunger handle groove 11 detects the mounting of the syringe 41 and sends a signal to the controller 15. As a result, the controller 15 operates the second motor 14 to cause the plunger 44 to be slightly retracted by the internal and

external screw gears

16 and 17. As a result, a space of about 1 ms is created in the syringe cylinder 42. This preparation process is very difficult to push out if there is no space secured in advance when the amount of aspirated cells is too small, so that even a small amount of sample can be easily pushed out using the space secured in advance.

As described above, the syringe 41 is suction-extracted from the cells of the body in the state mounted on the aspirator main body (1). That is, after the syringe 41 is mounted on the aspirator main body 1, the plunger 44 moves backward to suck and extract the cells of the body in a state where a space of about 1 mm is secured inside the syringe cylinder 42. .

Specifically, when the needle 40 is inserted into the tissue of the body and the first switch 20 is pressed, the plunger handle 45 is moved backward by the second motor 14 so that a negative pressure is applied to the inside of the syringe cylinder 42. At the same time, the operating tool 7 holding the cylinder handle 43 is moved by the first motor 8. That is, as the first motor 8 repeats the forward rotation and the reverse rotation, the operating port 7 also repeats the forward rotation and the reverse rotation and moves forward and backward by engaging the male and

female screws

4 and 6. Will be repeated.

As a result, in the state in which the negative pressure is applied to the syringe cylinder 42, the needle 40 repeats the action of stabbing and spinning while rotating the tissue of the body, so that the cells in the tissue can be suctioned and reliably and reliably extracted. At this time, the controller 15 controls the first motor 8 and the second motor 14 to continuously perform the operation until the first switch 20 is pressed once again.

After aspirating and extracting the cells as described above, the aspirating operation is stopped by pressing the first switch 20, and then the needle 40 is removed from the body, and then the aspirated and extracted cells are pressed by pressing the second switch 21. Discharge by amount.

When the second switch 21 is pressed, the second motor 14 is operated to slightly advance the plunger 44 to discharge the cells sucked into the syringe cylinder 42. In this case, since the controller 15 controls to discharge only the proper amount every time the second switch 21 is pressed, when the amount of suction is large, the second switch 21 is sucked by pressing the second switch 21 several times. Divide out the cells several times.

In addition, since the suction was started in the initial state with a free space of about 1 mm in the syringe cylinder 42, the aspirated cells can be discharged cleanly without leaving even a small amount of aspirated cells.

Claims

In order to confirm that the cells are sucked through the hub 46 of the syringe 41, the syringe holder 2 to which the syringe 41 is mounted with the hub 46 exposed from the main body and the space connected thereto An aspirator main body (1) formed with an aspirator cap (30) for fixing a syringe (41) inserted into the syringe holder portion (2);

A cylinder handle groove 5 is formed at the distal end of which the cylinder handle 43 of the syringe 41 is coupled, and a male screw coupled to the female screw screw 4 formed at the inner circumferential side of the space portion 3 at the rear end outer circumferential surface thereof. An actuating mechanism (7) formed with six screws (6), which is rotated by the first motor (8) installed at the rear of the space portion (3) and moved back and forth within the space portion (3);

The plunger handle groove 11 to which the plunger handle 45 of the syringe 41 is coupled is formed, and together with the plunger handle detection sensor 12 in the space portion 10 provided inside the operating port 7. It is installed, and the discharge operation port 13 connected to the second motor 14 installed in the space portion 10 through the inner and outer screw gears (16) (17);

A controller 15 for controlling the operation of the first motor 8 and the second motor 14 and a first switch 20 and a second for operating the first motor 8 and the second motor 14. Automatic fine needle cell aspirator comprising a switch (21).
The method of claim 1,

Automatic cylinder needle aspirator, characterized in that the cylinder groove (43) and the plunger handle (45) is mounted in a round, so that the cylinder groove (5) and the plunger handle groove (11), respectively.
The method according to claim 1 or 2,

The controller 15 controls the second motor 14 when the syringe 41 is first mounted so that a space of about 1 mm is secured in the syringe cylinder 42. Retracts the discharge operation opening 13 to which the plunger 44 of the

When the first switch 20 is pressed, a negative pressure is generated inside the syringe cylinder 42 by the second motor 14, and at the same time, the operating hole 7 is moved forward and backward by the first motor 8. An automatic fine needle aspirator, characterized in that the first motor (8) and the second motor (14) are controlled to perform a suction operation to repeat the forward and reverse rotation.
The method of claim 3,

The controller 15 continues the suction operation until the first switch 20 is pressed once and the second switch 21 is pressed, and the cells sucked into the syringe cylinder 42 are pressed once. Automatic fine suction device, characterized in that to control the first motor (8) and the second motor 14 so that the discharge operation is discharged only a predetermined amount.