Sampler for bone and soft tissue pathological biopsy

Abstract

The invention relates to the field of pathological biopsy, and discloses a sampler for bone and soft tissue pathological biopsy, which comprises a needle cylinder, the outer wall of the upper side of the needle cylinder is fixedly connected with a handle, the inner wall of the upper side of the needle cylinder is slidably connected with a movable block, the upper surface of the movable block is fixedly connected with a push rod, and the upper surface of the push rod is fixedly connected with a pressing plate. A reset spring is arranged in the needle cylinder, the outer wall of the reset spring is arranged in the movable block, a liquid storage tank is fixedly connected to the outer wall of the lower side of the needle cylinder, a sampling cutter is fixedly connected to the inner wall of the lower side of the needle cylinder, and a sampling drill is fixedly connected to the lower surface of the sampling cutter. The needle cylinder is driven to slide by pulling the handle downwards, the sampling knife is driven to move downwards when the needle cylinder slides along the inner wall of the working table, the sampling drill is driven to move synchronously when the sampling knife moves downwards, and finally the purpose of improving the single sampling amount is achieved, so that the effect of avoiding wound infection caused by repeated sampling of a patient can be achieved.

Description

Technical Field

[0001] The invention relates to the technical field of pathological biopsy, in particular to a sampler used for pathological biopsy of bone and soft tissue. Background Art

[0002] Pathological biopsy is a biopsy of living tissue. It is a diagnostic method in which part of the tissue is removed from the suspected part of the patient's body for pathological examination. Its main purpose is to clarify the nature, type and severity of the lesion, and to provide important basis for clinical diagnosis, treatment and prognosis assessment. For the examination of bone and soft tissue lesions, a sampler used for bone and soft tissue pathological biopsy is often used.

[0003] Existing samplers used for bone and soft tissue pathological biopsy are guided by imaging equipment. A needle is inserted into the lesion site at a specified depth and then pulled out to take out some lesion tissue samples. The samples can reflect the cell morphology, structure and presence of tumor cell infiltration of the target tissue. However, the existing samplers take a small number of samples at a time, which is often not enough to detect the cause of the lesion in one go. Multiple samples are required, which leads to the problem of patients getting wound infections due to multiple samples. Summary of the invention

[0004] In view of the deficiencies of the prior art, the present invention provides a sampler for bone and soft tissue pathological biopsy, which solves the problem that the patient's wound may be infected due to multiple samplings because the existing sampler takes a small amount of samples at a time.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a sampler for pathological biopsy of bone and soft tissue, comprising a syringe, the upper outer wall of the syringe is fixedly connected with a handle, the upper inner wall of the syringe is slidably connected with a movable block, the upper surface of the movable block is fixedly connected with a push rod, the upper surface of the push rod is fixedly connected with a pressing plate, a return spring is arranged inside the syringe, the outer wall of the return spring is arranged inside the movable block, the lower outer wall of the syringe is fixedly connected with a liquid storage tank, the lower inner wall of the syringe is fixedly connected with a sampling knife, the lower surface of the sampling knife is fixedly connected with a sampling drill, the outer wall of the sampling knife is provided with a sampling port, the lower inner part of the syringe is fixedly connected with an upper baffle, the lower inner part of the syringe is fixedly connected with a lower baffle, a negative pressure hole is provided inside the upper baffle, and a limiting component is arranged on the upper surface of the sampling knife, and the limiting component is used to limit the movement direction of the sample.

[0006] Preferably, the position limiting assembly comprises a sample outlet, the sample outlet is provided on the upper surface of the sampling knife, and a sample inlet is provided inside the lower baffle.

[0007] Preferably, the outer wall of the liquid storage tank is provided with a block, the outer wall of the block is fixedly connected to a first fixing plate, the outer wall of the liquid storage tank is fixedly connected to a second fixing plate, and the outer wall of the first fixing plate is provided on the outer wall of the second fixing plate.

[0008] Preferably, a first limiting block is fixedly connected to an outer wall of the first fixing plate, a second limiting block is fixedly connected to an outer wall of the second fixing plate, and an outer wall of the first limiting block is arranged on an outer wall of the second limiting block.

[0009] Preferably, a clamping column is slidably connected inside the second limit block, and a right outer wall of the clamping column is slidably connected to an outer wall of the second fixing plate.

[0010] Preferably, the left outer wall of the clamping column is slidably connected to the inside of the first limiting block, and the left outer wall of the clamping column is slidably connected to the outer wall of the first fixing plate.

[0011] Preferably, a middle outer wall of the syringe is slidably connected to a workbench, and a fixing groove is provided inside the left side of the workbench.

[0012] Preferably, a sampler for bone and soft tissue pathological biopsy according to claim 7 is characterized in that a limiting groove is opened inside the right side of the workbench, a positioning block is fixedly connected to the lower surface of the workbench, and a hydraulic cylinder is fixedly connected to the interior of the positioning block.

[0013] Preferably, the output end of the hydraulic cylinder is fixedly connected with a clamping block, the upper surface of the clamping block is fixedly connected with a sliding block, the sliding block is slidably connected to the right inner side of the workbench, and the inside of the clamping block is fixedly connected with a guide rail.

[0014] Preferably, the inner wall of the workbench is fixedly connected with a rotating shaft, the outer wall of the rotating shaft is rotatably connected with a transmission gear, and the outer wall of the transmission gear is meshingly connected to the outer wall of the guide rail.

[0015] Working principle: When the device is needed, first pull the handle downward to drive the syringe to slide inside the workbench. When the syringe slides, the handle will drive the sampling knife to move downward. When the sampling knife moves downward, the sampling knife will drive the sampling drill to move synchronously to the sampling location. When the sampling drill reaches the sampling location, turn the handle to drive the syringe to rotate. When the syringe rotates, the syringe will drive the sampling knife to rotate synchronously. At this time, the sampling knife cuts the diseased tissue and collects the processed tissue through the sampling port, ultimately achieving the purpose of increasing the single sampling volume. One sampling can meet the test needs, so that To achieve the effect of avoiding wound infection caused by multiple sampling of patients; when the sample enters the interior of the sampling knife, the push rod is driven upward by the stretched pressing plate, and the movable block slides along the interior of the syringe driven by the push rod, and then the reset spring is driven by the movable block to contract, and the sliding of the movable block forms a negative pressure inside the syringe. Under the action of the negative pressure, the sample flows from the interior of the sampling knife through the sample outlet and the sample inlet into the liquid storage tank, and finally the purpose of storing the sample is achieved, thereby achieving the effect of avoiding the sample from being oxidized by the external air; the clamping column is pulled to slide along the inner wall of the second limit block, and then When the clamping block is disengaged from the inside of the first limit block, the first fixing plate is separated from the surface of the second fixing plate and the blocking block is disengaged from the outer wall of the liquid storage tank, and then the pressing plate is released. At this time, the return spring is elastically deformed and pushes the movable block to slide downward along the inner wall of the syringe. Under the action of the movable block, the gas inside the syringe enters the liquid storage tank through the negative pressure hole and sprays the sample from the inside of the liquid storage tank, thereby achieving the effect of rapid sampling; the hydraulic cylinder is started to drive the clamping block to move left and right. When the clamping block moves left and right under the action of the hydraulic cylinder, the clamping block will drive the slider to slide along the limiting groove, and the clamping block will The guide rail is driven to move left and right. When the guide rail moves left and right driven by the clamp block, the guide rail will drive the transmission gear to rotate around the rotating shaft, and finally the purpose of controlling the opening and closing of the clamp block is achieved. The sampler is fixed on the operating table by the clamp block, so as to ensure the stability of the sampler during the sampling process. A sampler for bone and soft tissue pathological biopsy can not only avoid the patient's wound infection due to multiple sampling, but also avoid the sample from being oxidized by the external air, and can also achieve the effect of rapid sampling, and can also ensure the stability of the sampler during the sampling process.

[0016] The present invention provides a sampler for bone and soft tissue pathological biopsy, which has the following beneficial effects:

[0017] 1. The present invention drives the syringe to slide by pulling the handle downward. When the syringe slides along the inner wall of the workbench, it drives the sampling knife to move downward. When the sampling knife moves downward, it drives the sampling drill to move synchronously, and finally achieves the purpose of increasing the single sampling amount. One sampling can meet the test requirements, thereby avoiding the patient's wound infection due to multiple sampling.

[0018] 2. The present invention opens the hydraulic cylinder to push and pull the clamp block and move it left and right. When the clamp block moves left and right, it drives the slider to slide, and finally achieves the purpose of controlling the opening and closing of the clamp block. The sampler is fixed on the operating table by the clamp block, thereby ensuring the stability of the sampler during the sampling process.

[0019] 3. The present invention drives the push rod to move upward by pulling the push plate. At this time, the movable block slides under the drive of the push rod, and then the return spring undergoes elastic deformation as the movable block slides, and finally the purpose of storing the sample is achieved, thereby preventing the sample from being oxidized by the external air.

[0020] 4. The present invention pulls the clamping column to make it slide along the inner wall of the first limit block and come out, and then separates the block from the surface of the liquid storage tank, and then releases the pressing plate, and then the reset spring returns to its original state and drives the movable block to slide, and the sample is sprayed out from the inside of the liquid storage tank under the action of negative pressure, thereby achieving the effect of rapid sampling. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A stereoscopic diagram of a sampler for bone and soft tissue pathological biopsy proposed by the present invention;

[0022] Figure 2 A schematic diagram of a sampling drill of a sampler for bone and soft tissue pathological biopsy proposed by the present invention;

[0023] Figure 3 A schematic diagram of a return spring of a sampler for bone and soft tissue pathological biopsy proposed by the present invention;

[0024] Figure 4 A schematic diagram of a clamp column of a sampler for bone and soft tissue pathological biopsy proposed by the present invention;

[0025] Figure 5 A schematic diagram of a sampling knife of a sampler for bone and soft tissue pathological biopsy proposed by the present invention;

[0026] Figure 6 A schematic diagram of a clamping block of a sampler for bone and soft tissue pathological biopsy proposed by the present invention;

[0027] Figure 7 The present invention is a schematic diagram of a slider of a sampler for bone and soft tissue pathological biopsy.

[0028] Among them, 1. syringe; 2. handle; 3. movable block; 4. push rod; 5. press plate; 6. reset spring; 7. liquid storage tank; 8. sampling knife; 9. sampling drill; 10. sampling port; 11. sample outlet; 12. upper baffle plate; 13. negative pressure hole; 14. lower baffle plate; 15. sample inlet; 16. block; 17. first fixed plate; 18. second fixed plate; 19. clamping column; 20. workbench; 21. positioning block; 22. hydraulic cylinder; 23. clamping block; 24. rotating shaft; 25. transmission gear; 26. limiting groove; 27. first limiting block; 28. second limiting block; 29. ​​fixing groove; 30. guide rail; 31. slider. DETAILED DESCRIPTION

[0029] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only 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.

[0030] Please see attached Figure 1 -Attached Figure 7 The embodiment of the present invention provides a sampler for pathological biopsy of bone and soft tissue, comprising a syringe 1, a handle 2 is fixedly connected to the upper outer wall of the syringe 1, a movable block 3 is slidably connected to the upper inner wall of the syringe 1, a push rod 4 is fixedly connected to the upper surface of the movable block 3, a pressing plate 5 is fixedly connected to the upper surface of the push rod 4, a reset spring 6 is arranged inside the syringe 1, the outer wall of the reset spring 6 is arranged inside the movable block 3, a liquid storage tank 7 is fixedly connected to the lower outer wall of the syringe 1, a sampling knife 8 is fixedly connected to the lower inner wall of the syringe 1, a sampling drill 9 is fixedly connected to the lower surface of the sampling knife 8, a sampling port 10 is opened on the outer wall of the sampling knife 8, an upper baffle 12 is fixedly connected to the lower inner side of the syringe 1, a lower baffle 14 is fixedly connected to the lower inner side of the syringe 1, a negative pressure hole 13 is opened inside the upper baffle 12, and a limiting component is arranged on the upper surface of the sampling knife 8, and the limiting component is used to limit the movement direction of the sample;

[0031] Specifically, the syringe 1 is driven to slide by pulling the handle 2 downwards. When the syringe 1 slides along the inner wall of the workbench 20, the sampling knife 8 is driven to move downwards. When the sampling knife 8 moves downwards, the sampling drill 9 is driven to move synchronously. The handle 2 is turned to drive the syringe 1 to rotate. When the syringe 1 rotates, the sampling knife 8 is driven to rotate. Then, the sampling knife 8 cuts the diseased tissue and collects the diseased tissue through the sampling port 10. Finally, the purpose of increasing the single sampling amount is achieved. One sampling can meet the test requirements, thereby avoiding the patient's wound infection due to multiple sampling.

[0032] See attached Figure 3 and attached Figure 5The limiting assembly includes a sample outlet 11, which is opened on the upper surface of the sampling knife 8, and a sample inlet 15 is opened inside the lower baffle 14;

[0033] Specifically, the sample flows out through the sample outlet 11 and enters the lower baffle 14 , and the sample flows out from the lower baffle 14 through the sample inlet 15 and enters the liquid storage tank 7 .

[0034] See attached Figure 2 -Attached Figure 5 The outer wall of the liquid storage tank 7 is provided with a block 16, the outer wall of the block 16 is fixedly connected with a first fixed plate 17, the outer wall of the liquid storage tank 7 is fixedly connected with a second fixed plate 18, and the outer wall of the first fixed plate 17 is arranged on the outer wall of the second fixed plate 18; the outer wall of the first fixed plate 17 is fixedly connected with a first limiting block 27, the outer wall of the second fixed plate 18 is fixedly connected with a second limiting block 28, and the outer wall of the first limiting block 27 is arranged on the outer wall of the second limiting block 28; the interior of the second limiting block 28 is slidably connected with a card column 19, and the right outer wall of the card column 19 is slidably connected to the outer wall of the second fixed plate 18; the left outer wall of the card column 19 is slidably connected to the interior of the first limiting block 27, and the left outer wall of the card column 19 is slidably connected to the outer wall of the first fixed plate 17;

[0035] Specifically, pulling the push plate 5 drives the push rod 4 to move upward. At this time, the movable block 3 slides driven by the push rod 4, and then the return spring 6 is elastically deformed with the sliding of the movable block 3, and then the sliding of the movable block 3 causes a pressure difference to be formed inside the syringe 1, and then the sample flows into the liquid storage tank 7 from the inside of the sampling knife 8, and finally the purpose of storing the sample is achieved, thereby preventing the sample from being oxidized by the external air; pulling the card column 19 makes it slide along the inner wall of the first limit block 27 and come out, and then the block 16 is separated from the surface of the liquid storage tank 7, and then the push plate 5 is released, and then the return spring 6 returns to its original state and drives the movable block 3 to slide, and a negative pressure is formed inside the syringe 1 under the extrusion of the movable block 3, and the sample is sprayed out from the inside of the liquid storage tank 7 under the action of the negative pressure, thereby achieving the effect of rapid sampling.

[0036] See attached Figure 1 , Attachment Figure 6 and attached Figure 7The outer wall of the middle part of the syringe 1 is slidably connected with a workbench 20, and a fixed groove 29 is provided inside the left side of the workbench 20; a limited groove 26 is provided inside the right side of the workbench 20, and a positioning block 21 is fixedly connected to the lower surface of the workbench 20, and a hydraulic cylinder 22 is fixedly connected to the inside of the positioning block 21; a clamping block 23 is fixedly connected to the output end of the hydraulic cylinder 22, and a slider 31 is fixedly connected to the upper surface of the clamping block 23, and the slider 31 is slidably connected to the inside of the right side of the workbench 20, and a guide rail 30 is fixedly connected to the inside of the clamping block 23; a rotating shaft 24 is fixedly connected to the inner wall of the workbench 20, and a transmission gear 25 is rotatably connected to the outer wall of the rotating shaft 24, and the outer wall of the transmission gear 25 is meshedly connected to the outer wall of the guide rail 30;

[0037] Specifically, the hydraulic cylinder 22 is turned on to push and pull the clamp block 23 and move it left and right. When the clamp block 23 moves left and right, it will drive the slider 31 to slide, and the guide rail 30 will move left and right under the drive of the clamp block 23. When the guide rail 30 moves left and right, it will drive the transmission gear 25 to rotate, and finally the purpose of controlling the opening and closing of the clamp block 23 is achieved. The sampler is fixed on the operating bed through the clamp block 23, so as to ensure the stability of the sampler during the sampling process.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sampler for bone and soft tissue pathological biopsy, comprising a syringe (1), characterized in that: The upper outer wall of the syringe (1) is fixedly connected to a handle (2); the upper inner wall of the syringe (1) is slidably connected to a movable block (3); the upper surface of the movable block (3) is fixedly connected to a push rod (4); the upper surface of the push rod (4) is fixedly connected to a pressing plate (5); a return spring (6) is arranged inside the syringe (1); the outer wall of the return spring (6) is arranged inside the movable block (3); the lower outer wall of the syringe (1) is fixedly connected to a liquid storage tank (7); the lower outer wall of the syringe (1) is fixedly connected to a liquid storage tank (7); A sampling knife (8) is fixedly connected to the inner wall of the side, a sampling drill (9) is fixedly connected to the lower surface of the sampling knife (8), a sampling port (10) is provided on the outer wall of the sampling knife (8), an upper baffle (12) is fixedly connected to the lower interior of the syringe (1), a lower baffle (14) is fixedly connected to the lower interior of the syringe (1), a negative pressure hole (13) is provided inside the upper baffle (12), and a limit assembly is provided on the upper surface of the sampling knife (8), the limit assembly is used to limit the movement direction of the sample.

2. A sampler for bone and soft tissue pathological biopsy according to claim 1, characterized in that: The limiting assembly comprises a sample outlet (11), the sample outlet (11) is provided on the upper surface of the sampling knife (8), and a sample inlet (15) is provided inside the lower baffle (14).

3. A sampler for bone and soft tissue pathological biopsy according to claim 1, characterized in that: The outer wall of the liquid storage tank (7) is provided with a stopper (16), the outer wall of the stopper (16) is fixedly connected to a first fixing plate (17), the outer wall of the liquid storage tank (7) is fixedly connected to a second fixing plate (18), and the outer wall of the first fixing plate (17) is arranged on the outer wall of the second fixing plate (18).

4. A sampler for bone and soft tissue pathological biopsy according to claim 3, characterized in that: The outer wall of the first fixing plate (17) is fixedly connected to a first limiting block (27), the outer wall of the second fixing plate (18) is fixedly connected to a second limiting block (28), and the outer wall of the first limiting block (27) is arranged on the outer wall of the second limiting block (28).

5. A sampler for bone and soft tissue pathological biopsy according to claim 4, characterized in that: A clamping column (19) is slidably connected inside the second limit block (28), and a right outer wall of the clamping column (19) is slidably connected to an outer wall of the second fixing plate (18).

6. A sampler for bone and soft tissue pathological biopsy according to claim 5, characterized in that: The left outer wall of the clamping column (19) is slidably connected to the inside of the first limit block (27), and the left outer wall of the clamping column (19) is slidably connected to the outer wall of the first fixing plate (17).

7. A sampler for bone and soft tissue pathological biopsy according to claim 1, characterized in that: A workbench (20) is slidably connected to the middle outer wall of the syringe (1), and a fixing groove (29) is provided inside the left side of the workbench (20).

8. A sampler for bone and soft tissue pathological biopsy according to claim 7, characterized in that: A limiting groove (26) is provided inside the right side of the workbench (20), a positioning block (21) is fixedly connected to the lower surface of the workbench (20), and a hydraulic cylinder (22) is fixedly connected inside the positioning block (21).

9. A sampler for bone and soft tissue pathological biopsy according to claim 8, characterized in that: The output end of the hydraulic cylinder (22) is fixedly connected to a clamping block (23), the upper surface of the clamping block (23) is fixedly connected to a sliding block (31), the sliding block (31) is slidably connected to the inside of the right side of the workbench (20), and the inside of the clamping block (23) is fixedly connected to a guide rail (30).

10. A sampler for bone and soft tissue pathological biopsy according to claim 7, characterized in that: The inner wall of the workbench (20) is fixedly connected to a rotating shaft (24), the outer wall of the rotating shaft (24) is rotatably connected to a transmission gear (25), and the outer wall of the transmission gear (25) is meshingly connected to the outer wall of the guide rail (30).

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