Biopsy puncture device convenient to position

Abstract

The invention discloses a biopsy puncture device convenient to position, and belongs to the technical field of medical equipment.The biopsy puncture device comprises a bed frame and further comprises a positioning mechanism, a posture adjusting mechanism, a sampling mechanism and a linkage driving mechanism, the positioning mechanism is installed on the bed frame, and the posture adjusting mechanism is installed at the end, away from the bed frame, of the positioning mechanism; the linkage driving mechanism is installed on the middle side of the posture adjusting mechanism, the sampling mechanism is installed on the linkage driving mechanism, the linkage driving mechanism comprises a main body shell, a center shaft, a spring, a rotating rod, a sliding frame and a knob, the main body shell is installed on the posture adjusting mechanism, the center shaft is rotationally connected to the main body shell, and the spring is installed on the main body shell. One end of the spring is fixedly installed on the center shaft, and the other end of the spring is fixedly installed on the rear side of the main body shell. By means of the mode, puncture sampling operation can be carried out in one step, the sampling speed is high, the puncture angle can be fixed in an auxiliary mode, and single-person operation is facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of medical equipment, in particular to a biopsy puncture device which is easy to position. Background Art

[0002] Acute nephritic syndrome, primary nephrotic syndrome, asymptomatic hematuria or proteinuria, etc., can be diagnosed by renal biopsy to identify the pathological type, guide treatment and judgment. The full name of renal biopsy is percutaneous renal puncture biopsy, which is an important examination method for diagnosing kidney disease. The patient usually takes a prone position with sandbags on the abdomen to make the kidney relatively fixed. An ultrasound probe puncture stand is used to determine the puncture point under ultrasound guidance, usually at the outermost edge of the kidney. After local anesthesia, the doctor will use a special puncture needle to pierce the kidney through the skin to quickly obtain a small amount of renal tissue. Generally, 2-3 punctures are required to ensure that enough tissue is obtained for pathological examination. After the puncture is completed, the puncture needle is pulled out, local pressure is applied to stop bleeding, and a abdominal bandage is used for pressure dressing.

[0003] The Chinese patent with publication number CN213551975U proposes a biopsy puncture device for renal internal medicine, comprising a supporting foot, the top of the supporting foot is fixedly connected to a mounting plate, the bottom of the supporting foot is fixedly connected to a fixing belt, the middle of the fixing belt is fixedly installed with a positioning ring, both sides of the upper surface of the mounting plate are fixedly connected with telescopic rods, the top of the telescopic rod is fixedly connected to the supporting plate, the middle of the upper surface of the supporting plate is fixedly installed with a control box, the middle of the bottom end of the control box is fixedly installed with a push rod, the middle of the bottom end of the push rod is connected with a puncture needle, a storage box is provided in the middle of the bottom end of the mounting plate, the middle of both sides of the storage box are fixedly connected with limited blocks, and both sides of the lower surface of the mounting plate are provided with movable grooves, the inner part of the movable groove is fixedly connected with a limited rod, the outer side of the limited rod is movably connected with a reset spring, and one end of the reset spring is fixedly connected with a sliding plate.

[0004] However, the technical solution of this patent has the following problems:

[0005] This patent requires multiple steps for sampling, has low sampling efficiency, and cannot provide auxiliary support for puncture at various angles.

[0006] Based on this, the present invention designs a biopsy puncture device that is easy to position to solve the above problem. Summary of the invention

[0007] In view of the above-mentioned shortcomings of the prior art, the present invention provides a biopsy puncture device that is easy to position.

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0009] A biopsy puncture device that is easy to position, includes a bed frame, and also includes: a positioning mechanism, a posture adjustment mechanism, a sampling mechanism and a linkage drive mechanism, the positioning mechanism is installed on the bed frame, the posture adjustment mechanism is installed at one end of the positioning mechanism away from the bed frame, the linkage drive mechanism is installed on the middle side of the posture adjustment mechanism, and the sampling mechanism is installed on the linkage drive mechanism. The linkage drive mechanism includes: a main body shell, a central axis, a spring, a rotating rod, a sliding frame and a knob, the main body shell is installed on the posture adjustment mechanism, the central axis is rotatably connected to the main body shell, one end of the spring is fixedly installed on the central axis, the other end of the spring is fixedly installed on the rear side of the main body shell, one end of the rotating rod is fixedly installed on the central axis, a strip opening is provided on the right side of the main body shell, the left side of the sliding frame is slidably connected to the strip opening, and the knob is fixedly installed on the rear side of the central axis.

[0010] Furthermore, the linkage drive mechanism also includes: a transmission rod, a sliding sleeve and a sliding rod, one end of the transmission rod is rotatably connected to the end of the rotating rod away from the central axis through a rotating shaft, the sliding sleeve is fixedly installed on the lower side of the main body shell, the sliding rod is slidably connected to the sliding sleeve, and the end of the transmission rod away from the rotating rod is rotatably connected to the upper side of the sliding rod through a rotating shaft.

[0011] Furthermore, the linkage drive mechanism also includes: a rotating plate and a spring, the middle side of the rotating plate is rotatably connected to the right side of the main shell through a rotating shaft, the lower side of the rotating plate is rotatably connected to the right side of the sliding frame through a rotating shaft, and one end of each of the springs is fixedly mounted on the upper side of the rotating plate, and the other end of the spring is fixedly connected to the main shell.

[0012] Furthermore, the positioning mechanism includes: a special-shaped plate, a first screw and an abutment plate, the special-shaped plate is arranged on the bed frame, a plurality of the first screws are threadedly connected to the lower side of the special-shaped plate, the abutment plate is rotatably connected to the upper side of the first screw, and the upper side of the abutment plate is close to the bed frame.

[0013] Furthermore, the positioning mechanism also includes: a dovetail guide rail, a dovetail slider, an L-shaped base plate and a second screw. The multiple dovetail guide rails are fixedly installed on the upper side of the special-shaped plate. The dovetail slider is slidably connected to the dovetail guide rail. The L-shaped base plate is fixedly installed on the upper side of the dovetail slider. The second screw is threadedly connected to the L-shaped base plate, and one end of the second screw is close to the bed frame.

[0014] Furthermore, the posture adjustment mechanism includes: a vertical rod, an extension rod and a third screw, the vertical rod is fixedly mounted on the upper side of the L-shaped base plate, the extension rod is rotatably connected to the vertical rod, the third screw is threadedly connected to one end of the extension rod close to the vertical rod, and one end of the third screw is close to the vertical rod.

[0015] Furthermore, the posture adjustment mechanism also includes: a C-shaped frame, a first rotating frame, a second rotating frame and an ultrasonic probe puncture frame, the C-shaped frame is fixedly mounted on the end of the extension rod away from the vertical rod, the first rotating frame is rotatably connected to the C-shaped frame via a rotating shaft, the second rotating frame is rotatably connected to the first rotating frame via a rotating shaft, the ultrasonic probe puncture frame is fixedly mounted on the second rotating frame, and the main body shell is arranged on the ultrasonic probe puncture frame.

[0016] Furthermore, the sampling mechanism includes: a fixed hollow tube and a sliding hollow tube, the fixed hollow tube is fixedly installed on the lower side of the main body shell, the upper side of the sliding hollow tube is fixedly installed on the lower side of the sliding rod, the lower side of the sliding hollow tube is slidably connected to the fixed hollow tube, the lower side of the sliding hollow tube is provided with a groove, and the end of the fixed hollow tube away from the main body shell is slidably connected to the ultrasonic probe puncture frame.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention rotates the knob of the linkage driving mechanism, the knob rotation drives the central shaft rotation, the central shaft rotation causes the mainspring to undergo elastic deformation, the central shaft rotation drives the rotating rod rotation, the rotating rod rotates to the left side of the sliding frame, the sliding frame clamps the rotating rod, at this time, the knob is released, the rotating rod is clamped on the sliding frame, the rotating plate is pressed, the spring undergoes elastic deformation, the rotating plate rotates to drive the sliding frame to move right, the sliding frame moves to the right and leaves the rotating rod, the elastically deformed mainspring recovers, the rotating rod rotates clockwise, the rotating rod rotation drives the transmission rod rotation, the transmission rod rotation drives the sliding rod to slide on the sliding sleeve, the sliding rod first slides downward, then slides upward, the sliding rod movement drives the sliding hollow tube to move for rapid sampling, which is conducive to one-step puncture sampling operation, and the sampling speed is relatively fast;

[0018] 2. By placing the special-shaped plate of the positioning mechanism on the bed frame and turning the first screw, the rotation of the first screw drives the abutment plate to move upward, and the abutment plate is close to the bed frame so that the special-shaped plate is quickly fixed on the bed frame, which is conducive to adapting to bed frames of different specifications; move the L-shaped base plate left and right, and at the same time rotate the extension rod to a suitable position, and quickly position the device to a suitable position through the cooperation of the L-shaped base plate and the extension rod, tighten the second screw to fix the L-shaped base plate that moves left and right, and tighten the third screw to fix the extension rod, which is conducive to quickly positioning the device to a suitable position; the second rotating frame of the posture adjustment mechanism rotates left and right, and the first rotating frame rotates forward and backward. The first rotating frame and the second rotating frame are fixed by fixing screws, so that the equipment can quickly adjust the puncture angle and fix the angle, which is conducive to assisting in fixing the puncture angle, saving the physical strength of medical staff, and facilitating single-person sampling. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0021] Figure 2 A front view of the present invention with the bed frame removed;

[0022] Figure 3 The three-dimensional structure diagram of the present invention without the bed frame is shown in FIG. Figure 1 ;

[0023] Figure 4 The three-dimensional structure diagram of the present invention without the bed frame is shown in FIG. Figure 2 ;

[0024] Figure 5 It is a three-dimensional structural schematic diagram of the linkage driving mechanism and the sampling mechanism of the present invention;

[0025] Figure 6 The schematic diagram of the structure of the linkage drive mechanism and the sampling mechanism of the present invention without part of the main body shell Figure 1 ;

[0026] Figure 7 The schematic diagram of the structure of the linkage drive mechanism and the sampling mechanism of the present invention without part of the main body shell Figure 2 ;

[0027] Figure 8 It is a partial structural schematic diagram of the fixed hollow tube and the sliding hollow tube of the present invention.

[0028] The numbers in the figure represent:

[0029] 1. Bed frame; 2. Positioning mechanism; 21. Special-shaped plate; 22. First screw; 23. Abutment plate; 24. Dovetail guide rail; 25. Dovetail slider; 26. L-shaped bottom plate; 27. Second screw; 3. Posture adjustment mechanism; 31. Vertical rod; 32. Extension rod; 33. Third screw; 34. C-shaped frame; 35. First rotating frame; 36. Second rotating frame; 37. Ultrasonic probe puncture frame; 4. Sampling mechanism; 41. Fixed hollow tube; 42. Sliding hollow tube; 5. Linkage drive mechanism; 51. Main body shell; 52. Central axis; 53. Spring; 54. Rotating rod; 55. Sliding frame; 56. Knob; 57. Transmission rod; 58. Sliding sleeve; 59. Sliding rod; 510. Rotating plate; 511. Spring. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] The present invention will be further described below in conjunction with the embodiments.

[0032] The terms “left”, “right”, “front”, “back”, “up” and “down” mentioned in the following description are oriented in the viewing direction of the front view.

[0033] Embodiment 1: In some embodiments, please refer to Figure 1-Figure 8 A biopsy puncture device that is easy to position includes a bed frame 1, and also includes: a positioning mechanism 2, a posture adjustment mechanism 3, a sampling mechanism 4 and a linkage drive mechanism 5, the positioning mechanism 2 is installed on the bed frame 1, the posture adjustment mechanism 3 is installed at one end of the positioning mechanism 2 away from the bed frame 1, the linkage drive mechanism 5 is installed on the middle side of the posture adjustment mechanism 3, and the sampling mechanism 4 is installed on the linkage drive mechanism 5, and the linkage drive mechanism 5 includes: a main body shell 51, a central axis 52, a spring 53, a rotating rod 54, a sliding frame 55 and a knob 56, the main body shell 51 is installed on the posture adjustment mechanism 3, the central axis 52 is rotatably connected to the main body shell 51, one end of the spring 53 is fixedly installed on the central axis 52, the other end of the spring 53 is fixedly installed on the rear side of the main body shell 51, one end of the rotating rod 54 is fixedly installed on the central axis 52, a strip opening is provided on the right side of the main body shell 51, the left side of the sliding frame 55 is slidably connected to the strip opening, and the knob 56 is fixedly installed on the rear side of the central axis 52.

[0034] The puncture point is determined under ultrasound guidance, usually at the outermost edge of the kidney. After local anesthesia, the device is quickly moved to the patient's puncture site through the positioning mechanism 2. The posture adjustment mechanism 3 is used to adjust the posture of the device so that the change of the puncture angle of the device is more accurate, which is beneficial for medical staff to operate to change the puncture angle of the device, and the sampling mechanism 4 is driven by the linkage drive mechanism 5 to perform sampling.

[0035] The knob 56 of the linkage driving mechanism 5 is turned. The knob 56 drives the central shaft 52 to rotate. The rotation of the central shaft 52 causes the spring 53 to elastically deform. The rotation of the central shaft 52 drives the rotating rod 54 to rotate. The rotating rod 54 rotates to the left side of the sliding frame 55. The sliding frame 55 clamps the rotating rod 54. At this time, the knob 56 is released and the rotating rod 54 is clamped on the sliding frame 55.

[0036] The linkage drive mechanism 5 also includes: a transmission rod 57, a sliding sleeve 58 and a sliding rod 59. One end of the transmission rod 57 is rotatably connected to the end of the rotating rod 54 away from the central axis 52 through a rotating shaft. The sliding sleeve 58 is fixedly installed on the lower side of the main shell 51. The sliding rod 59 is slidably connected to the sliding sleeve 58. The end of the transmission rod 57 away from the rotating rod 54 is rotatably connected to the upper side of the sliding rod 59 through a rotating shaft.

[0037] The linkage drive mechanism 5 also includes: a rotating plate 510 and a spring 511. The middle side of the rotating plate 510 is rotatably connected to the right side of the main shell 51 through a rotating shaft, and the lower side of the rotating plate 510 is rotatably connected to the right side of the sliding frame 55 through a rotating shaft. One end of each of the springs 511 is fixedly installed on the upper side of the rotating plate 510, and the other end of the spring 511 is fixedly connected to the main shell 51.

[0038] When the rotating plate 510 is pressed, the spring 511 undergoes elastic deformation, the rotating plate 510 rotates and drives the sliding frame 55 to move rightward, the sliding frame 55 moves rightward and leaves the rotating rod 54, the elastically deformed spring 53 recovers, and the rotating rod 54 rotates clockwise, the rotating rod 54 rotates and drives the transmission rod 57 to rotate, the transmission rod 57 rotates and drives the sliding rod 59 to slide on the sliding sleeve 58, the sliding rod 59 slides downward first, and then slides upward, which is conducive to the one-step puncture sampling operation and the sampling speed is faster.

[0039] Embodiment 2: In some embodiments, Figure 1-Figure 8 As shown, as a preferred embodiment of the present invention, the positioning mechanism 2 includes: a special-shaped plate 21, a first screw 22 and an abutment plate 23, the special-shaped plate 21 is arranged on the bed frame 1, and a plurality of the first screws 22 are threadedly connected to the lower side of the special-shaped plate 21, and the abutment plate 23 is rotatably connected to the upper side of the first screw 22, and the upper side of the abutment plate 23 is close to the bed frame 1.

[0040] Place the special-shaped plate 21 of the positioning mechanism 2 on the bed frame 1, and rotate the first screw 22. The rotation of the first screw 22 drives the abutment plate 23 to move upward. The abutment plate 23 is close to the bed frame 1 so that the special-shaped plate 21 is quickly fixed on the bed frame 1, which is conducive to adapting to bed frames 1 of different specifications.

[0041] The positioning mechanism 2 also includes: a dovetail guide rail 24, a dovetail slider 25, an L-shaped base plate 26 and a second screw 27. The multiple dovetail guide rails 24 are fixedly installed on the upper side of the special-shaped plate 21, the dovetail slider 25 is slidably connected to the dovetail guide rail 24, the L-shaped base plate 26 is fixedly installed on the upper side of the dovetail slider 25, and the second screw 27 is threadedly connected to the L-shaped base plate 26, and one end of the second screw 27 is close to the bed frame 1.

[0042] The posture adjustment mechanism 3 includes: a vertical rod 31, an extension rod 32 and a third screw 33. The vertical rod 31 is fixedly installed on the upper side of the L-shaped base plate 26. The extension rod 32 is rotatably connected to the vertical rod 31. The third screw 33 is threadedly connected to one end of the extension rod 32 close to the vertical rod 31, and one end of the third screw 33 is close to the vertical rod 31.

[0043] Move the L-shaped base plate 26 left and right, and rotate the extension rod 32 to the appropriate position at the same time. The device can be quickly positioned at the appropriate position by cooperating with the L-shaped base plate 26 and the extension rod 32. Move the extension rod 32 up and down to adjust the extension rod 32 to a suitable height. Tighten the second screw 27 to fix the L-shaped base plate 26 left and right, and tighten the third screw 33 to fix the extension rod 32, which is conducive to quickly positioning the device at the appropriate position.

[0044] The posture adjustment mechanism 3 also includes: a C-shaped frame 34, a first rotating frame 35, a second rotating frame 36 and an ultrasonic probe puncture frame 37, the C-shaped frame 34 is fixedly mounted on the end of the extension rod 32 away from the vertical rod 31, the first rotating frame 35 is rotatably connected to the C-shaped frame 34 via a rotating shaft, the second rotating frame 36 is rotatably connected to the first rotating frame 35 via a rotating shaft, the ultrasonic probe puncture frame 37 is fixedly mounted on the second rotating frame 36, and the main body shell 51 is arranged on the ultrasonic probe puncture frame 37.

[0045] The second rotating frame 36 of the posture adjustment mechanism 3 rotates left and right, and the first rotating frame 35 rotates forward and backward. The first rotating frame 35 and the second rotating frame 36 are fixed by fixing screws, so that the ultrasonic probe puncture frame 37 can quickly adjust and fix the detection angle, so that the equipment can quickly adjust the puncture angle and fix the angle, which is beneficial to assist in fixing the puncture angle and save the physical strength of medical staff.

[0046] The sampling mechanism 4 includes: a fixed hollow tube 41 and a sliding hollow tube 42, the fixed hollow tube 41 is fixedly installed on the lower side of the main shell 51, the upper side of the sliding hollow tube 42 is fixedly installed on the lower side of the sliding rod 59, the lower side of the sliding hollow tube 42 is slidably connected to the fixed hollow tube 41, the lower side of the sliding hollow tube 42 is provided with a groove, and the end of the fixed hollow tube 41 away from the main shell 51 is slidably connected to the ultrasonic probe puncture frame 37.

[0047] The sampling mechanism 4 is moved to a suitable position by the positioning mechanism 2, and the ultrasonic probe puncture frame 37 is used for detection, and the fixed hollow tube 41 and the sliding hollow tube 42 are inserted into the ultrasonic probe puncture frame 37 for coordinated use.

[0048] The sliding rod 59 moves downward to drive the sliding hollow tube 42 downward, so that the sliding hollow tube 42 moves to the sampling site of the patient. Then the sliding rod 59 moves upward to drive the sliding hollow tube 42 upward, and the groove on the lower side of the sliding hollow tube 42 scrapes the tissue at the sampling site of the patient. At this time, the sliding hollow tube 42 returns to the fixed hollow tube 41, and the device is removed from the second rotating frame 36. The knob 56 is turned to move the sliding hollow tube 42 out of the fixed hollow tube 41 to take out the sample.

[0049] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A biopsy puncture device that is easy to position, comprising a bed frame (1), and further comprising: A positioning mechanism (2), a posture adjustment mechanism (3), a sampling mechanism (4) and a linkage drive mechanism (5), wherein the positioning mechanism (2) is mounted on a bed frame (1), the posture adjustment mechanism (3) is mounted on an end of the positioning mechanism (2) away from the bed frame (1), the linkage drive mechanism (5) is mounted on the middle side of the posture adjustment mechanism (3), the sampling mechanism (4) is mounted on the linkage drive mechanism (5), and the linkage drive mechanism (5) comprises: a main body shell (51), a central shaft (52), a spring (53), a rotating rod (54), a sliding frame (55) and a knob ( 56), the main housing (51) is mounted on the posture adjustment mechanism (3), the central shaft (52) is rotatably connected to the main housing (51), one end of the spring (53) is fixedly mounted on the central shaft (52), the other end of the spring (53) is fixedly mounted on the rear side of the main housing (51), one end of the rotating rod (54) is fixedly mounted on the central shaft (52), a strip opening is provided on the right side of the main housing (51), the left side of the sliding frame (55) is slidably connected to the strip opening, and the knob (56) is fixedly mounted on the rear side of the central shaft (52).

2. The biopsy puncture device for easy positioning according to claim 1, characterized in that: The linkage drive mechanism (5) further comprises: a transmission rod (57), a sliding sleeve (58) and a sliding rod (59); one end of the transmission rod (57) is rotatably connected to an end of the rotating rod (54) away from the central axis (52) via a rotating shaft; the sliding sleeve (58) is fixedly mounted on the lower side of the main housing (51); the sliding rod (59) is slidably connected to the sliding sleeve (58); and the end of the transmission rod (57) away from the rotating rod (54) is rotatably connected to the upper side of the sliding rod (59) via a rotating shaft.

3. The biopsy puncture device for easy positioning according to claim 2, characterized in that: The linkage drive mechanism (5) further comprises: a rotating plate (510) and a spring (511); the middle side of the rotating plate (510) is rotatably connected to the right side of the main housing (51) via a rotating shaft; the lower side of the rotating plate (510) is rotatably connected to the right side of the sliding frame (55) via a rotating shaft; one end of a plurality of springs (511) is fixedly mounted on the upper side of the rotating plate (510); and the other end of the springs (511) is fixedly connected to the main housing (51).

4. The biopsy puncture device for easy positioning according to claim 1, characterized in that: The positioning mechanism (2) comprises: a special-shaped plate (21), a first screw (22) and an abutment plate (23); the special-shaped plate (21) is arranged on the bed frame (1); a plurality of the first screws (22) are threadedly connected to the lower side of the special-shaped plate (21); the abutment plate (23) is rotatably connected to the upper side of the first screw (22); and the upper side of the abutment plate (23) is in close contact with the bed frame (1).

5. The biopsy puncture device for easy positioning according to claim 4, characterized in that: The positioning mechanism (2) further comprises: a dovetail guide rail (24), a dovetail slider (25), an L-shaped base plate (26) and a second screw (27); a plurality of the dovetail guide rails (24) are fixedly mounted on the upper side of the special-shaped plate (21); the dovetail slider (25) is slidably connected to the dovetail guide rail (24); the L-shaped base plate (26) is fixedly mounted on the upper side of the dovetail slider (25); the second screw (27) is threadedly connected to the L-shaped base plate (26); and one end of the second screw (27) is in close contact with the bed frame (1).

6. The biopsy puncture device for easy positioning according to claim 5, characterized in that: The posture adjustment mechanism (3) comprises: a vertical rod (31), an extension rod (32) and a third screw (33); the vertical rod (31) is fixedly mounted on the upper side of the L-shaped base plate (26); the extension rod (32) is rotatably connected to the vertical rod (31); the third screw (33) is threadedly connected to one end of the extension rod (32) close to the vertical rod (31); and one end of the third screw (33) is in close contact with the vertical rod (31).

7. The biopsy puncture device for easy positioning according to claim 6, characterized in that: The posture adjustment mechanism (3) further comprises: a C-shaped frame (34), a first rotating frame (35), a second rotating frame (36) and an ultrasonic probe puncture frame (37); the C-shaped frame (34) is fixedly mounted on an end of the extension rod (32) away from the vertical rod (31); the first rotating frame (35) is rotatably connected to the C-shaped frame (34) via a rotating shaft; the second rotating frame (36) is rotatably connected to the first rotating frame (35) via a rotating shaft; the ultrasonic probe puncture frame (37) is fixedly mounted on the second rotating frame (36); and the main body shell (51) is arranged on the ultrasonic probe puncture frame (37).

8. The biopsy puncture device for easy positioning according to claim 7, characterized in that: The sampling mechanism (4) comprises: a fixed hollow tube (41) and a sliding hollow tube (42); the fixed hollow tube (41) is fixedly mounted on the lower side of the main body shell (51); the upper side of the sliding hollow tube (42) is fixedly mounted on the lower side of the sliding rod (59); the lower side of the sliding hollow tube (42) is slidably connected to the fixed hollow tube (41); a groove is provided on the lower side of the sliding hollow tube (42); and the end of the fixed hollow tube (41) away from the main body shell (51) is slidably connected to the ultrasonic probe puncture frame (37).

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