Brain tissue needle biopsy device

Abstract

The utility model discloses a brain tissue needle biopsy device, which relates to the technical field of medical instruments and comprises an arc-shaped mounting frame, a sliding block is arranged on the arc-shaped mounting frame, a support is arranged on the sliding block, limiting grooves which are symmetrically distributed are arranged on the inner side of the support, a movable block is arranged on the support, and the movable block is arranged on the arc-shaped mounting frame. The two ends of the movable block are in sliding connection with the support through the limiting grooves, a threaded rod is arranged on the movable block, the top end of the threaded rod penetrates through the support and is in threaded connection with the support, and a biopsy needle is arranged on the movable block. And deviation of a puncture position and a puncture angle is easy to occur, and the proficiency and the ability of a surgeon are too relied too much.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical equipment technical field, especially a brain tissue biopsy device. BACKGROUND

[0002] Brain puncture examination, also known in medicine as brain biopsy, or stereotactic accurate brain biopsy, is a pathological examination method, is a kind of invasive examination, and the purpose is to ascertain the nature of brain lesion, i.e. the disease type suffered by brain. It is mainly used for the diagnosis, aspiration, drug administration and other treatments of intracerebral lesions, and the commonly used brain tissue puncture needle is a single-hole puncture needle with circular or conical tip, which is used for releasing cerebrospinal fluid.

[0003] The existing brain tissue biopsy is usually performed by medical staff holding a biopsy needle to puncture the brain of a patient. The biopsy needle held by hand has certain risks, and if hand shaking occurs, it may affect the puncture position and angle, and too much reliance is placed on the proficiency of the surgeon and the ability of the surgeon. Therefore, a brain tissue biopsy device is proposed to limit the position and direction of puncture and assist the surgeon in performing the puncture operation. SUMMARY

[0004] The utility model aims at providing a brain tissue biopsy device to solve the problems mentioned in the background.

[0005] The utility model is implemented as follows: a brain tissue biopsy device includes an arc-shaped mounting bracket, a sliding block is arranged on the arc-shaped mounting bracket, a support is arranged on the sliding block, symmetrically distributed limiting grooves are arranged on the inner side of the support, a movable block is arranged on the support, the movable block is slidably connected with the support through the limiting grooves at both ends, a threaded rod is arranged on the movable block, the top end of the threaded rod penetrates through the support and is threadedly connected with the support, and a biopsy needle is arranged on the movable block.

[0006] Further technical solutions of the utility model are as follows: mounting plates are fixedly connected at both ends of the arc-shaped mounting bracket, and a first scale is arranged on one side of the arc-shaped mounting bracket close to the support.

[0007] Further technical solutions of the utility model are as follows: sliding grooves are arranged on both sides of the arc-shaped mounting bracket, and the sliding block is slidably connected with the arc-shaped mounting bracket through the sliding grooves.

[0008] Further technical solutions of the utility model are as follows: fixing bolts are arranged on the sliding block.

[0009] Further technical solutions of the utility model are as follows: a bearing seat is arranged on the movable block, and the lower end of the threaded rod is rotatably connected with the movable block through the bearing seat.

[0010] The further technical scheme of the utility model discloses: the mounting hole is equipped on the movable block, the biopsy needle passes through the mounting hole with the movable block detachable connection.

[0011] The further technical scheme of the utility model discloses: the second scale is equipped on the one side of the support near the biopsy needle.

[0012] The utility model discloses the beneficial effect: compared with traditional biopsy needle, the utility model discloses the motion track of slider through arc mounting frame to control, through the first scale on arc mounting frame, can effectively adjust the puncture angle, simultaneously, through fixed bolt to fix slider, prevent the position of slider when puncturing, guarantee the accuracy of puncture position, through the rotation threaded rod can effectively adjust the position of movable block on the support, and then with the second scale on the support cooperation, can accurately judge the puncture depth of biopsy needle on movable block, thereby guarantee the precision of puncture. DRAWINGS

[0013] Figure 1 It is the front view of the brain tissue puncture biopsy device provided by the utility model,

[0014] Figure 2 It is the front view of the brain tissue puncture biopsy device provided by the utility model,

[0015] Figure 3 It is the adjusting mechanism of the brain tissue puncture biopsy device provided by the utility model,

[0016] Figure 4 It is the partial enlarged view of the brain tissue puncture biopsy device provided by the utility model.

[0017] Signs: 1. arc mounting frame;11. sliding groove;12. first scale;2. mounting plate;3. slider;31. fixed bolt;4. support;41. limit slot;42. second scale;5. threaded rod;6. biopsy needle;7. movable block;71. mounting hole;8. bearing seat. CONCRETE IMPLEMENTATION

[0018] The following through specific concrete example explains the implementation of the utility model, and the person skilled in the art can easily understand other advantages and effects of the utility model from the content disclosed in the specification.The utility model can also be implemented or applied through another different specific implementation, and each detail in the specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the utility model.

[0019] It should be noted that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the disclosed technical content. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0020] like Figure 1 As shown, a brain tissue puncture biopsy device comprises an arc-shaped mounting frame 1, a slider 3 on the arc-shaped mounting frame 1, a support 4 on the slider 3, symmetrically distributed limiting grooves 41 on the inner side of the support 4, a movable block 7 on the support 4, the two ends of the movable block 7 being slidably connected to the support 4 through the limiting grooves 41, a threaded rod 5 on the movable block 7, the top end of the threaded rod 5 penetrating the support 4 and being threadedly connected to the support 4, and a biopsy needle 6 on the movable block 7.

[0021] In this embodiment, as Figure 2 As shown, mounting plates 2 are fixedly connected to both ends of the arc-shaped mounting frame 1, and a first scale 12 is provided on the side of the arc-shaped mounting frame 1 near the support 4. In actual use, this brain tissue puncture biopsy device is fixedly mounted on the operating table via the mounting plates 2.

[0022] In this embodiment, the arc-shaped mounting bracket 1 has sliding grooves 11 on both sides, and the slider 3 is slidably connected to the arc-shaped mounting bracket 1 through the sliding grooves 11. Figure 2 As shown, when the slider 3 slides on the groove 11, the bracket 4 on the slider 3 also moves accordingly, thereby adjusting the position of the biopsy needle 6 to help the physician accurately locate the puncture site. Once the puncture site is determined, the position of the slider 3 is fixed by the fixing bolt 31 provided on the slider 3.

[0023] In this embodiment, as Figure 4 As shown, the movable block 7 is provided with a bearing seat 8, and the lower end of the threaded rod 5 is rotatably connected to the movable block 7 through the bearing seat 8. When the threaded rod 5 is rotated, since the top end of the threaded rod 5 is threadedly connected to the bracket 4, and the lower end of the threaded rod 5 is rotatably connected to the movable block 7 through the bearing seat 8, the threaded rod 5 will drive the movable block 7 to move linearly along the limiting groove 41, thereby adjusting the puncture depth.

[0024] In the embodiment, the movable block 7 is provided with a mounting hole 71, and the biopsy needle 6 is detachably connected with the movable block 7 through the mounting hole 71. The second scale 42 is arranged on the side of the support 4 close to the biopsy needle 6, and the puncture depth of the biopsy needle 6 can be effectively controlled through the second scale 42.

[0025] The working principle of the brain tissue puncture biopsy device is as follows:

[0026] In actual work, the movement track of the sliding block 3 is made through the arc-shaped mounting frame 1, the puncture angle can be effectively adjusted by observing the first scale 12 on the arc-shaped mounting frame 1, meanwhile, the sliding block 3 is fixed through the fixing bolt 31 to prevent displacement of the sliding block during puncture, and the accuracy of the puncture position is ensured; the position of the movable block 7 on the support 4 can be effectively adjusted through the rotating threaded rod 5, and then the puncture depth of the biopsy needle 6 on the movable block 7 can be accurately judged in cooperation with the second scale 42 on the support 4, so that the precision of puncture is ensured.

[0027] The above is only a preferred embodiment of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A brain tissue biopsy device comprising an arcuate mounting bracket (1) characterised in that: The arc-shaped mounting bracket (1) is provided with a sliding block (3), the sliding block (3) is provided with a support (4), the inner side of the support (4) is provided with a limit slot (41) which is symmetrically distributed, the support (4) is provided with a movable block (7), the movable block (7) is slidably connected with the support (4) through the limit slot (41) at both ends, the movable block (7) is provided with a threaded rod (5), the top end of the threaded rod (5) penetrates through the support (4) and is threadedly connected with the support (4), and the movable block (7) is provided with a biopsy needle (6).

2. A brain tissue coring biopsy device according to claim 1, wherein, Both ends of the arc-shaped mounting bracket (1) are fixedly connected with a mounting plate (2), and one side of the arc-shaped mounting bracket (1) close to the support (4) is provided with a first scale (12).

3. A brain tissue coring biopsy device according to claim 1 wherein, Both sides of the arc-shaped mounting bracket (1) are provided with a sliding groove (11), and the sliding block (3) is slidably connected with the arc-shaped mounting bracket (1) through the sliding groove (11).

4. A brain tissue coring biopsy device according to claim 3, wherein, The sliding block (3) is provided with a fixing bolt (31).

5. A brain tissue coring biopsy device according to claim 1 wherein, The movable block (7) is provided with a bearing seat (8), and the lower end of the threaded rod (5) is rotatably connected with the movable block (7) through the bearing seat (8).

6. A brain tissue coring biopsy device according to claim 1 wherein, The movable block (7) is provided with a mounting hole (71), and the biopsy needle (6) is detachably connected with the movable block (7) through the mounting hole (71).

7. A brain tissue coring biopsy device according to claim 6, wherein, One side of the support (4) close to the biopsy needle (6) is provided with a second scale (42).

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