LU500472B1 - Safety protective device for thoracic tumor puncture and operation method thereof - Google Patents

Abstract

Disclosed are a safety protective device for thoracic tumor puncture and an operation method thereof, including a lifting device, a rotating device and an offset device, wherein the rotating device includes a rotating cover; a bottom of the rotating cover is fixedly mounted with a gear III, and a bottom of the gear III is fixedly mounted with a sliding ring; a bottom of the sliding ring is provided with a support seat, a top of the support seat is provided with a mounting groove, and a bottom of the mounting groove is provided with a slideway; the sliding ring is inserted on an inner wall of the slideway, a top of a side of the support seat is provided with a through hole I, and a gear IV is inserted on an inner wall of the through hole I; a side of the gear IV is engaged with the gear III, a top of the gear IV is fixedly mounted with an adjustment rod I, and a top of the rotating cover is fixedly mounted with a support block. The present invention has the beneficial effects of greatly improving accuracy of the puncture by fixing a puncture needle on a limit ring I and the adjustment rod I and then by causing the puncture needle to be perpendicular to a puncture point through the adjustment of the rotation device and the offset device with the cooperation of the adjustment rod I and an adjustment rod II.

Description

SAFETY PROTECTIVE DEVICE FOR THORACIC TUMOR PUNCTURE AND 1500472

OPERATION METHOD THEREOF

FIELD OF THE INVENTION The present invention relates to the technical field of medical instruments, in particular, to a safety protective device for thoracic tumor puncture and an operation method thereof.

BACKGROUND OF THE INVENTION The puncture device has a wide range of applications in the field of surgical medicine. In particular, in recent years, with the continuous development of minimally-invasive surgery technology, slender-needle-puncture has been widely used in minimally invasive surgery such as radioactive seed implantation and biopsy; for example, in the diagnosis and treatment of tumors, slender-needle-puncture has become an important method, which has the advantages of less trauma and accurate treatment, etc., wherein with the combination of image navigation technology, under the guidance of CT, ultrasound and nuclear magnetic imaging, the puncture needle can be more accurately implanted into the small target area to achieve accurate disease detection and treatment. The method has become a research hotspot at home and abroad in recent years.

The prior art has the following drawbacks: the existing puncture device for thoracic tumor has a simple structure and requires medical staff to hold and perform chest puncture, which relies on the doctor’s operating experience, takes a long time, has high treatment costs and high risk factors; during the chest puncture process, it is difficult for medical staff to control the puncture angle, the accuracy of puncture is difficult to control, and the malignant tissues may fall into the thoracic cavity when the needle core is removed due to the breathing movement of the patients since the operator made mistakes in the puncture technique, which results in implant transfer, when the tumor tissues or malignant cells are obtained.

Therefore, there is an urgent need to present a safety protective device for thoracic tumor puncture and an operation method thereof.

1

BRIEF SUMMARY OF THE DISCLOSURE LUS00472 To this end, the present invention provides a safety protective device for thoracic tumor puncture and an operation method thereof to solve the problems of accuracy in puncturing by fixing a puncture needle on a limit ring I and the adjustment rod I, adjusting and fixing by a screw III, and then by causing the puncture needle to be perpendicular to a puncture point through the adjustment of the rotation device and the offset device with the cooperation of the adjustment rod I and an adjustment rod IL To realize the above purpose, the present invention provides the following technical solutions: a safety protective device for thoracic tumor puncture includes a lifting device, a rotating device and an offset device, wherein the rotating device includes a rotating cover; a bottom of the rotating cover is fixedly mounted with a gear III, and a bottom of the gear III is fixedly mounted with a sliding ring; a bottom of the sliding ring is provided with a support seat, a top of the support seat is provided with a mounting groove, and a bottom of the mounting groove is provided with a slideway; the sliding ring is inserted on an inner wall of the slideway, a top of a side of the support seat is provided with a through hole I, and a gear IV is inserted on an inner wall of the through hole I; a side of the gear IV is engaged with the gear III, a top of the gear IV is fixedly mounted with an adjustment rod I, and a top of the rotating cover is fixedly mounted with a support block; the support block is arranged as two sets, and an inner side of the support block is provided with the offset device.

Preferably, the offset device includes a screw II and a moving block; a sliding rod is provided above and below the screw II, the screw II and the sliding rod pass through two ends of the moving block to be fixedly connected to the inner side of the support block, and a position where the moving block is connected to the screw II is provided with an inner thread.

Preferably, a side of the moving block is fixedly mounted with a limit ring II, a screw III is inserted on a side of the limit ring II, and an end of the screw III is fixedly mounted with a mounting clip; a top of the moving block is fixedly mounted with a limit rod, a top of an outer wall of the limit rod is fixedly mounted with a limit ring I, and a center of the limit ring is provided with a through hole IL 2

Preferably, a left side of a group of the support blocks is fixedly mounted with an adjusthtént 0472 rod II, and a right side of the adjustment rod II is fixedly connected to a left end of the screw II.

Preferably, an inner wall of the limit ring IT is provided with a puncture needle, and a top of the puncture needle is inserted on an inner wall of the through hole II.

Preferably, a bottom of the support seat is provided with the lifting device, the lifting device includes a top plate, and the bottom of the support seat is fixedly mounted on a bottom of the top plate; the bottom of the top plate is provided with a bottom plate, an upper limit block is inserted on four corners of the bottom plate, and a lower limit block is inserted on four corners of a top of the bottom plate; a screw I is inserted on an inner wall of the upper limit block, an inner wall of the top plate is fixedly mounted with a bearing, and an outer wall of the bearing is sleeved with a gear IT; four corners of the gear II are provided with a gear I, the gear II is engaged with the gear I, and the gear I is mounted on the inner wall of the upper limit block; the top plate is movably connected to the bottom plate through the screw I, and a top of the screw I is fixedly mounted with a limit plate.

Preferably, the bottom of the top plate is provided with a motor, a left side of the motor is fixedly connected on a right side of the upper limit block, a top of the motor is fixedly connected to a transmission gear, and the transmission gear is engaged with the gear I.

Preferably, four corners of a bottom of the bottom plate are fixedly mounted with a spring seat, a bottom of the spring seat is bonded with a rubber sheet, two sides of the bottom plate are provided with a slot, and a side of the slot is fixedly mounted with a strap.

Preferably, the top of the moving block is fixedly mounted with a limit arm, a right end of a top of the limit arm is fixedly mounted with a clamp, and a bottom of a right end of the clamp is fixedly mounted with a drive spring.

An operation method of the safety protective device for thoracic tumor puncture includes steps of: step one, rotating a body position according to a designed safety path, and first performing a normal CT on one side according to an image on the CT for positioning, wherein a supine position, a prone position, and a side position are different; 3 step two, after measuring an exact depth, draw a puncture point on a skin, selecting a length 4PQ0472 needle according to a positioning instrument, selecting a deviation degree from a horizontal line, and placing the present invention through the strap at a position where the puncture is required after selection; step three, fixing the puncture needle on the limit ring I and the adjustment rod I, which is adjusted and fixed through the screw III, then causing the puncture needle to be perpendicular to the puncture point through the adjustment of the rotating device and the offset device with the cooperation of the adjustment rod I and an adjustment rod II, using a biopsy gun to connect the puncture needle for puncturing a needle core and a shell together to a position of a detected tissue, and pulling out the needle core and then putting the puncture needle into the shell after the position of the detected tissue is reached for a biopsy including cutting; step four, after completion, controlling the motor to lift the lifting device to draw out the puncture needle at a constant speed for guaranteeing in obtaining tumor tissues or malignant cells and avoiding to produce implant transfer by protecting the malignant tissues from falling into a chest cavity due to the breathing movement of a patient, fixing specially the tissues for a certain period of time in such as Formalin and cell fluid after the tissues are taken out, and then sending the tissues to a pathology department and a cytology room for a series of tests such as dicing, freezing, and waxing.

The present invention has the following beneficial effects:

1. In the present invention, by fixing the puncture needle on the limit ring I and the adjustment rod I, which is adjusted and fixed through the screw III, then causing the puncture needle to be perpendicular to the puncture point through the adjustment of the rotating device and the offset device with the cooperation of the adjustment rod I and an adjustment rod II, and using a biopsy gun to connect the puncture needle for puncturing a needle core and a shell together to a position of a detected tissue, the effect of improving the accuracy of puncture is reallized,;

2. In the present invention, by controlling the motor to lift the lifting device to draw out the puncture needle at a constant speed for guaranteeing in obtaining tumor tissues or malignant cells and avoiding to produce implant transfer by protecting the malignant tissues from falling into a 4 chest cavity due to the breathing movement of a patient, the effect of picking out the needle stabpp0472 is realized. Notes on drawings Fig. 1 is a structural diagram of Embodiment 1 of the present invention; Fig. 2 is a structural diagram of a lifting device of Embodiment 1 of the present invention; Fig. 3 is a structural diagram of an offset device of Embodiment 1 of the present invention; Fig. 4 is a structural diagram of a rotating device of Embodiment 1 of the present invention; Fig. 5 is a top view of the offset device of Embodiment 1 of the present invention; Fig. 6 is a view of mounting a motor of Embodiment 1 of the present invention; Fig. 7 is a structural diagram of a limit arm of Embodiment 2 of the present invention.

In figures: lifting device 100, top plate 110, bearing 111, bottom plate 120, slot 121, strap 122, screw I 130, gear I 131, gear II 140, lower limit block 150, upper limit block 160, limit plate 170, motor 180, transmission gear 181, spring seat 190, rubber sheet 191, rotating device 200, rotating cover 210, gear III 220, sliding ring 221, support seat 230, mounting groove 231, slideway 232, through hole I 233, gear IV 240, adjustment rod I 250, support block 260, limit rod 270, limit ring I 271, through hole II 272, puncture needle 280, limit arm 290, clamp 291, drive spring 292, offset device 300, moving block 310, sliding rod 320, screw II 330, inner thread 340, limit ring II 350, screw III 360, clip 370, adjustment rod II 380.

Detailed Description of the Invention The preferred embodiment of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiment described here are only used to illustrate and explain the present invention, and are not used to limit the present invention.

Embodiment 1: with reference to Figs. 1 to 6, the present invention provides a safety protective device for thoracic tumor puncture, which includes a lifting device 100, a rotating device 200-HN80472 an offset device 300, wherein specifically, the rotating device 200 includes a rotating cover 210; a bottom of the rotating cover 210 is fixedly mounted with a gear III 220, the gear III 220 having a transmission effect on the rotating cover 210, and a bottom of the gear III 220 is fixedly mounted with a sliding ring 221, the sliding ring 221 having a support effect on the gear III 220; a bottom of the sliding ring 221 is provided with a support seat 230, the support seat 230 having a support effect on the sliding ring 221, a top of the support seat 230 is provided with a mounting groove 231, the mounting groove 231 having a mounting effect on the rotating cover 210, and a bottom of the mounting groove 231 is provided with a slideway 232, the slideway 232 having a limit effect on the sliding ring 221; the sliding ring 221 is inserted on an inner wall of the slideway 232, a top of a side of the support seat 230 is provided with a through hole I 233, and a gear IV 240 is inserted on an inner wall of the through hole I 233, the through hole I 233 having a mounting effect on the gear IV 240; a side of the gear IV 240 is engaged with the gear III 220, the gear IV 240 having a transmission effect on the gear III 220, a top of the gear IV 240 is fixedly mounted with an adjustment rod I 250, the adjustment rod I 250 having a transmission effect on the gear IV 240, and a top of the rotating cover 210 is fixedly mounted with a support block 260, the rotating cover 210 having a support effect on the support block 260; the support block 260 is arranged as two sets, and an inner side of the support block 260 is provided with the offset device 300, the supporting block 260 having a support effect on the offset device 300 and the rotating device 200 having an effect of driving the offset device 300 to rotate;

further, the offset device 300 includes a screw II 330 and a moving block 310; specifically, a sliding rod 320 is provided above and below the screw II 330, the screw II 330 having a transmission effect on the moving block 310, the screw II 330 and the sliding rod 320 pass through two ends of the moving block 310 to be fixedly connected to the inner side of the support block 260, the sliding rod 320 having a transmission effect on the moving block 310, and a position where the moving block 310 is connected to the screw II 330 is provided with an inner thread 340, the screw II 330 being engagingly connected to the inner thread 340;

further, a side of the moving block 310 is fixedly mounted with a limit ring II 350, specifically, and a screw III 360 is inserted on a side of the limit ring II 350, the limit ring II 350 having a mounting effect on the screw III 360; an end of the screw III 360 is fixedly mounted with a clip 370,

6 the screw III 360 having a transmission effect on the clip 370, and a top of the moving block 344380472 fixedly mounted with a limit rod 270, the moving block 310 having a support effect on the limit rod 270; a top of an outer wall of the limit rod 270 is fixedly mounted with a limit ring I 271, the limit ring 271 having a fix effect on the puncture needle 280, and a center of the limit ring 271 is provided with a through hole II 272, the through hole 272 having a limit effect on the puncture needle 280;

further, a left side of the support block 260 is fixedly mounted with an adjustment rod II 380; specifically, the support block 260 having a support effect on the adjustment rod II 380, a right end of the adjustment rod II 380 is fixedly connected to a left end of the screw II 330, the adjustment rod II 380 having a transmission effect on the screw II 330;

further, an inner wall of the limit ring II 350 is provided with a puncture needle 280; specifically, a top of the puncture needle 280 is inserted on an inner wall of the through hole IT 272, the limit ring II 350 having a limit effect on the puncture needle 280;

further, a bottom of the support seat 230 is provided with the lifting device 100; specifically, the lifting device 100 includes a top plate 110, and the bottom of the support seat 230 is fixedly mounted on a bottom of the top plate 110, the lifting device 100 having a support effect on the support seat 230; the bottom of the top plate 110 is provided with a bottom plate 120, an upper limit block 160 is inserted on four corners of the top plate 110, and a lower limit block 150 is inserted on four corners of a top of the bottom plate 120; a screw I 130 is inserted on an inner wall of the upper limit block 160, the upper limit block 160 and the lower limit block 150 having a mounting effect on the gear I 131 and the screw I 130, an inner wall of the top plate 110 is fixedly mounted with a bearing 111, and an outer wall of the bearing 111 is sleeved with a gear II 140, the bearing 111 having a support effect on the gear II 140; four corners of the gear II 140 are provided with a gear I 131, the gear II 140 is engaged with the gear I 131, the gear I 131 having a transmission effect on the gear II 140, and the gear I 131 is mounted on the inner wall of the upper limit block 160; the top plate 110 is movably connected to the bottom plate 120 through the screw I 130, and a top of the screw I 130 is fixedly mounted with a limit plate 170, the screw I 130 having a limit effect on the top plate 110 and the bottom plate 120;

further, the bottom of the top plate 110 is provided with a motor (180); specifically, a left side

7 of the motor 180 is fixedly connected on a right side of the upper limit block 160, the upper Hin}0472 block 160 having a support effect on the motor 180, and a top of the motor 180 is fixedly connected to a transmission gear 181, the motor 180 having a transmission effect on the transmission gear 181; the motor 180 is configured as a servo motor 51656-VRBDA; the servo motor may make the control speed and position accuracy very accurate, and may convert the voltage signal into torque and speed to drive the controlled object; the rotor speed of the servo motor is controlled by the input signal and may react quickly, wherein in the automatic control system, the servo motor 1s used as an actuator, which may convert the received electrical signal into the angular displacement or angular velocity output on the motor shaft, the transmission gear 181 is engaged with the gear I 131, the transmission gear 181 having a transmission effect on the gear I 131; further, four corners of a bottom of the bottom plate 120 are fixedly mounted with a spring seat 190, a bottom of the spring seat 190 is bonded with a rubber sheet 191, two sides of the bottom plate 120 are provided with a slot 121, and a side of the slot 121 1s fixedly mounted with a strap 122; specifically, the spring seat 190 having a shock absorption effect on the bottom plate 120, the bottom of the spring seat 190 is bonded with the rubber sheet 191, the rubber sheet 191 having a non-slip effect, and a side of the slot 121 is fixedly mounted with a strap 122, the slot 121 having a mounting effect on the strap 122, and the strap 122 has a function of fixing the present invention on the chest; in the present embodiment, the standard deviation of the accuracy measurement results for the puncture points of three puncture needles of the present invention 1s 0.0185-0.07117, which shows that the reproducibility of the experiment under the same conditions 1s relatively good.

PP [ee pas ow] 1 | Te 2 Ee aa 8

L 472

0.1484 0.3964 0.6180 U500 3 Standard deviation 0.0197 0.0205 0.0369 An operation method of the safety protective device for thoracic tumor puncture includes steps of: step one, a body position is rotated according to a designed safety path, and first a normal CT is performed on one side according to an image on the CT for positioning, wherein a supine position, a prone position, and a side position are different; step two, after an exact depth is measured, a puncture point is drawn on a skin, a length of a needle is selected according to a positioning instrument, a deviation degree is selected from a horizontal line, and the present invention is placed through the strap (122) at a position where the puncture is required after selection; step three, the puncture needle is fixed on the limit ring I 271 and the adjustment rod I 350, which is adjusted and fixed through the screw III 360, then the puncture needle 280 is caused to be perpendicular to the puncture point through the adjustment of the rotating device 200 and the offset device 300 with the cooperation of the adjustment rod I 250 and an adjustment rod II 380, a biopsy gun is used to connect the puncture needle for puncturing a needle core and a shell together to a position of a detected tissue, and the needle core is pulled out and then the puncture needle is put into the shell after the position of the detected tissue is reached for a biopsy including cutting; step four, after completion, the motor 180 is controlled to lift the lifting device 100 to draw out the puncture needle 280 at a constant speed for guaranteeing in obtaining tumor tissues or malignant cells and avoiding to produce implant transfer by protecting the malignant tissues from falling into a chest cavity due to the breathing movement of a patient, the tissues are specially fixed for a certain period of time in such as Formalin and cell fluid after the tissues are taken out, and then the tissues are sent to a pathology department and a cytology room for a series of tests such as dicing, freezing, and waxing.

Embodiment 2: With reference to Fig. 7 of the drawings of Specification, the present embodiment provides a 9 safety protective device for thoracic tumor puncture, which further includes a limit arm 290; LU500472 further, the top of the moving block 310 1s fixedly mounted with a limit arm 290, a right end of a top of the limit arm 290 is fixedly mounted with a clamp 291, and a bottom of a right end of the limit arm 290 is fixedly mounted with a drive spring 292; specifically, the limit arm 290 includes the clamp 291 and the drive spring 292, the moving block 310 having a support effect on the limit arm 290, the right end of the top of the limit arm 290 is fixedly mounted with the clamp 291, the limit arm 290 having a support effect on the clamp 291, and the bottom of the right end of the limit arm 290 is fixedly mounted with the drive spring 292, the drive spring 292 having a clamp effect on the clamp 291 and the clamp 291 having a clamp effect on the puncture needle 280.

The specific implementation scenario is as follows: when using the present invention, workers in the field need to replace the limit rod 270 with the limit arm 290.

Although the present invention has been described in detail with general descriptions and specific examples above, it is obvious to those skilled in the art that some modifications or improvements can be made on the basis of the present invention. Therefore, all these modifications or improvements made without departing from the spirit of the present invention belong to the scope of the present invention.

Claims (10)

Claims LU500472

1. A safety protective device for thoracic tumor puncture, comprising a lifting device (100), a rotating device (200) and an offset device (300), wherein the rotating device (200) comprises a rotating cover (210); a bottom of the rotating cover (210) is fixedly mounted with a gear III (220), and a bottom of the gear III (220) is fixedly mounted with a sliding ring (221); a bottom of the sliding ring (221) is provided with a support seat (230), a top of the support seat (230) is provided with a mounting groove (231), and a bottom of the mounting groove (231) is provided with a slideway (232); the sliding ring (221) is inserted on an inner wall of the slideway (232), a top of a side of the support seat (230) is provided with a through hole I (233), and a gear IV (240) is inserted on an inner wall of the through hole I (233); a side of the gear IV (240) is engaged with the gear III (220), a top of the gear IV (240) is fixedly mounted with an adjustment rod I (250), and a top of the rotating cover (210) is fixedly mounted with a support block (260); the support block (260) is arranged as two sets, and an inner side of the support block (260) is provided with the offset device (300).

2. The safety protective device for thoracic tumor puncture according to claim 1, wherein the offset device (300) comprises a screw II (330) and a moving block (310); a sliding rod (320) is provided above and below the screw II (330), the screw II (330) and the sliding rod (320) pass through two ends of the moving block (310) to be fixedly connected to the inner side of the support block (260), and a position where the moving block (310) is connected to the screw II (330) is provided with an inner thread (340).

3. The safety protective device for thoracic tumor puncture according to claim 2, wherein a side of the moving block (310) is fixedly mounted with a limit ring II (350), a screw III (360) is inserted on a side of the limit ring II (350), and an end of the screw III (360) is fixedly mounted with a clip (370); a top of the moving block (310) is fixedly mounted with a limit rod (270), a top of an outer wall of the limit rod (270) is fixedly mounted with a limit ring I (271), and a center of the limit ring (271) 1s provided with a through hole IT (272).

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4. The safety protective device for thoracic tumor puncture according to claim 2, wherein a left 31380472 of a set of the support blocks (260) is fixedly mounted with an adjustment rod II (380), and a right end of the adjustment rod II (380) is fixedly connected to a left end of the screw II (330).

5. The safety protective device for thoracic tumor puncture according to claim 3, wherein an inner wall of the limit ring II (350) is provided with a puncture needle (280), and a top of the puncture needle (280) is inserted on an inner wall of the through hole II (272).

6. The safety protective device for thoracic tumor puncture according to claim 1, wherein a bottom of the support seat (230) is provided with the lifting device (100), the lifting device (100) comprises a top plate (110), and the bottom of the support seat (230) is fixedly mounted on a bottom of the top plate (110); the bottom of the top plate (110) is provided with a bottom plate (120), an upper limit block (160) is inserted on four corners of the top plate (110), and a lower limit block (150) is inserted on four corners of a top of the bottom plate (120); a screw I (130) is inserted on an inner wall of the upper limit block (160), an inner wall of the top plate (110) is fixedly mounted with a bearing (111), and an outer wall of the bearing (111) is sleeved with a gear II (140); four corners of the gear II (140) are provided with a gear I (131), the gear II (140) is engaged with the gear I (131), and the gear I (131) is mounted on the inner wall of the upper limit block (160); the top plate (110) is movably connected to the bottom plate (120) through the screw I (130), and a top of the screw I (130) 1s fixedly mounted with a limit plate (170).

7. The safety protective device for thoracic tumor puncture according to claim 6, wherein the bottom of the top plate (110) is provided with a motor (180), a left side of the motor (180) is fixedly connected on a right side of the upper limit block (160), a top of the motor (180) is fixedly connected to a transmission gear (181), and the transmission gear (181) is engaged with the gear I (131).

8. The safety protective device for thoracic tumor puncture according to claim 6, wherein four corners of a bottom of the bottom plate (120) are fixedly mounted with a spring seat (190), a bottom of the spring seat (190) is bonded with a rubber sheet (191), two sides of the bottom plate (120) are provided with a slot (121), and a side of the slot (121) is fixedly mounted with a strap (122).

9. The safety protective device for thoracic tumor puncture according to claim 2, wherein the top of 12 the moving block (310) is fixedly mounted with a limit arm (290), a right end of a top of the Hifp04 72 arm (290) is fixedly mounted with a clamp (291), and a bottom of a right end of the clamp (290) is fixedly mounted with a drive spring (292).

10. An operation method of the safety protective device for thoracic tumor puncture, comprising steps of: step one, rotating a body position according to a designed safety path, and first performing a normal CT on one side according to an image on the CT for positioning, wherein a supine position, a prone position, and a side position are different; step two, after measuring an exact depth, draw a puncture point on a skin, selecting a length of a needle according to a positioning instrument, selecting a deviation degree from a horizontal line, and placing the present invention through the strap (122) at a position where the puncture is required after selection; step three, fixing the puncture needle on the limit ring I (271) and the adjustment rod I (350), which is adjusted and fixed through the screw III (360), then causing the puncture needle (280) to be perpendicular to the puncture point through the adjustment of the rotating device (200) and the offset device (300) with the cooperation of the adjustment rod I (250) and an adjustment rod II (380), using a biopsy gun to connect the puncture needle for puncturing a needle core and a shell together to a position of a detected tissue, and pulling out the needle core and then putting the puncture needle into the shell after the position of the detected tissue is reached for a biopsy including cutting; step four, after completion, controlling the motor (180) to lift the lifting device (100) to draw out the puncture needle (280) at a constant speed for guaranteeing in obtaining tumor tissues or malignant cells and avoiding to produce implant transfer by protecting the malignant tissues from falling into a chest cavity due to the breathing movement of a patient, fixing specially the tissues for a certain period of time in such as Formalin and cell fluid after the tissues are taken out, and then sending the tissues to a pathology department and a cytology room for a series of tests such as dicing, freezing, and waxing. 13