Multi-angle puncture device

Abstract

The utility model discloses a multi-angle puncture device which comprises a puncture device body and a biopsy needle, the puncture device body comprises a positioning assembly, the center of the positioning assembly is provided with a hollow puncture part, the surface of the positioning assembly is provided with an annular dial, the inner side of the dial is provided with a limiting flange attached to the edge of the puncture part, and the biopsy needle is arranged on the outer side of the dial. An arc-shaped adjusting plate is arranged above the dial, the dial and the adjusting plate form a first adjusting structure, an adjusting groove is formed in the adjusting plate, a biopsy needle fixing mechanism is installed on one side of the adjusting plate, and the adjusting plate and the biopsy needle fixing mechanism form a second adjusting mechanism. Through multi-dimensional fixation, the puncture angle and position can be preliminarily determined, the structure is simple, the fixed biopsy needle can be adjusted, biopsy needles of different specifications can be adapted, manual operation is completely achieved, driving devices such as a motor are not needed, accessories are fewer, and the related bottom is made of soft materials, can be folded and can be conveniently fixed to the special-shaped body part; the clinical operation is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a multi-angle puncture device. Background Art

[0002] During the puncture operation, the puncture needle needs to be inserted into the lesion under the guidance of CT or B-ultrasound. In the past, when percutaneous puncture was used to treat tumors in the body cavity or to take a biopsy, the puncturist could only subjectively judge the needle insertion angle, but could not determine the angle and the initial position, and then correct the angle through CT or B-ultrasound multiple times. The accuracy was poor, and repeated CT or B-ultrasound caused certain radiation to the patient, which may cause other lesions. In addition, the puncture process was affected by the change in body position during the patient's physical activities, which often caused puncture errors. Repeated punctures had to be performed, resulting in serious complications such as pneumothorax, hemothorax, and organ bleeding. Therefore, the existing puncture technology cannot accurately locate the needle insertion angle and depth, which is not conducive to the smooth progress of minimally invasive surgery. Utility Model Content

[0003] In order to solve the above technical problems, a multi-angle puncture device is provided.

[0004] To achieve the above-mentioned objectives, the present utility model discloses a multi-angle puncture device, comprising a puncture device body and a biopsy needle. The puncture device body includes a positioning assembly, a hollow puncture portion is provided in the center of the positioning assembly, an annular scale is provided on the surface of the positioning assembly, a limit rib is provided on the inner side of the scale that fits the edge of the puncture portion, and an arc-shaped adjustment plate is provided above the scale. The scale and the adjustment plate constitute a first adjustment structure, an adjustment slot is provided on the adjustment plate, a biopsy needle fixing mechanism is installed on one side of the adjustment plate, and the adjustment plate and the biopsy needle fixing mechanism constitute a second adjustment mechanism.

[0005] Furthermore, the surface of the positioning component close to the dial is provided with at least four groups of folding grooves distributed at equal angles, and the cross section of the folding groove is V-shaped.

[0006] Furthermore, a slide groove is provided between the scale plate and the limit retaining edge, and an inverted T-shaped slider is provided at the end of the adjustment plate, which is clamped between the scale plate and the limit retaining edge. The slider is provided with a locking block extending along the direction of the slide groove, and the locking block is provided with a first locking bolt perpendicular to the positioning assembly.

[0007] Furthermore, the scale plate and the root of the limit rib are provided with an inverted Y-shaped slot corresponding to the folding slot.

[0008] Furthermore, scale marks are provided on the edges of the adjustment slots on both sides of the adjustment plate, and the scale range is ±40°. A second locking bolt is provided on the side of the adjustment plate away from the biopsy needle fixing mechanism.

[0009] Furthermore, the biopsy needle fixing mechanism includes a positioning part formed by fixing two hollow shells of the same structure together. A hollow structure is provided at the center of the positioning part and a rotating sphere is provided in the hollow structure. A through hole is provided in the rotating sphere for passing the biopsy needle.

[0010] Furthermore, one side of the positioning portion is connected to a second locking bolt passing through the adjustment plate, and a third locking bolt is provided on a side of the positioning portion away from the adjustment plate.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. Through multi-dimensional fixation, the puncture angle and puncture position can be preliminarily determined, and any target site can be punctured;

[0013] 2. Simple structure, the fixed biopsy needle can be adjusted to adapt to biopsy needles of different specifications, completely manual operation, no need for motors or other driving devices;

[0014] 3. Single use to avoid cross infection;

[0015] 4. It has fewer accessories, and the bottom is made of soft material and can be folded, making it easy to fix on special-shaped body parts and more convenient for clinical operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0018] Figure 2 This is a schematic diagram of the installation of the adjustment plate of the present utility model.

[0019] Figure 3 For this utility model Figure 1 Partial view A.

[0020] Figure 4 Schematic diagram B of the biopsy needle fixing mechanism of the present invention.

[0021] Figure 5 This is a schematic diagram of the hollow shell of the present utility model.

[0022] In the figure: 1 is a positioning assembly; 11 is a folding groove; 2 is a biopsy needle; 3 is a scale plate; 31 is a slot; 4 is a limit rib; 5 is an adjustment plate; 51 is an adjustment groove; 52 is a slider; 53 is a locking block; 6 is a biopsy needle fixing mechanism; 61 is a positioning part; 62 is a rotating sphere; 7 is a first locking bolt; 8 is a second locking bolt; 9 is a third locking bolt. DETAILED DESCRIPTION

[0023] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0024] An embodiment of the present utility model, as Figure 1 As shown, the puncture device body includes a positioning component 1, a hollow puncture part is provided in the center of the positioning component 1, an annular scale plate 3 is provided on the surface of the positioning component 1, a limit rib 4 is provided on the inner side of the scale plate 3 to fit the edge of the puncture part, and an arc-shaped adjustment plate 5 is provided above the scale plate 3. The scale plate 3 and the adjustment plate 5 constitute a first adjustment structure. The first adjustment mechanism can rotate 360° to achieve horizontal angle adjustment. An adjustment slot 51 is provided on the adjustment plate 5. A biopsy needle fixing mechanism 6 is installed on one side of the adjustment plate 5. The adjustment plate 5 and the biopsy needle fixing mechanism 6 constitute a second adjustment mechanism. The second adjustment mechanism can be adjusted to a certain angle in the vertical direction. Through multi-dimensional fixation, the puncture angle and position can be preliminarily determined. The structure is simple, the fixed biopsy needle can be adjusted to adapt to biopsy needles of different specifications, and it is completely manually operated without the need for a drive device such as a motor. The data can be recorded the next time the same tumor is punctured, which is convenient to operate.

[0025] like Figure 3 As shown, the surface of the positioning component 1 close to the dial 3 is provided with at least four groups of folding grooves 11 distributed at equal angles, and the cross-section of the folding groove 11 is V-shaped. Specifically, the positioning component 1 is made of soft rubber material, and through the four groups of folding grooves maintained vertically between each other, it can achieve horizontal and vertical folding to better fit the surface of human skin.

[0026] like Figure 2 As shown, a slide groove is provided between the scale plate 3 and the limit rib 4, and an inverted T-shaped slider 52 is provided at the end of the adjustment plate 5, which is clamped between the scale plate 3 and the limit rib 4. The slider 52 is provided with a locking block 53 extending along the slide groove direction, and the locking block 53 is provided with a first locking bolt 7 perpendicular to the positioning component 1. The adjustment plate 5 is rotated 360° in the slide groove through the slider 52 to accurately locate the lesion and display the position with a scale. After being rotated to the target position, it is locked by the first locking bolt 7.

[0027] like Figure 3 As shown, an inverted Y-shaped slot 31 corresponding to the folding slot 11 is provided at the root of the scale plate 3 and the limit rib 4, so that the scale plate 3 and the limit rib 4 can also be folded within a certain angle range, thereby improving the fitting effect and making the installation of the device more stable.

[0028] The edges of the adjustment slots 51 on both sides of the adjustment plate 5 are provided with scale marks, and the scale range is ±40°. A second locking bolt 8 is provided on the side of the adjustment plate 5 away from the biopsy needle fixing mechanism 6. The biopsy needle fixing mechanism 6 is adjusted in the vertical direction along the adjustment slot 52. After being rotated to the target position, it is locked by the second locking bolt 8.

[0029] like Figure 4 and Figure 5 As shown, the biopsy needle fixing mechanism 6 includes a positioning portion 61 formed by fixing two hollow shells of the same structure together. The hollow shells are fixed together by plugging and fixing. A hollow structure is provided in the center of the positioning portion 61, and a rotating sphere 62 is provided in the hollow structure. A through hole is provided in the rotating sphere 62 for passing the biopsy needle 3. The biopsy needle 2 can rotate in the positioning portion 61 after passing through the through hole, thereby achieving fine adjustment of the final puncture angle.

[0030] One side of the positioning portion 61 is connected to the second locking bolt 8 passing through the adjustment plate 5, and a third locking bolt 9 is provided on the side of the positioning portion 61 away from the adjustment plate 5. After the final puncture angle of the biopsy needle 2 is determined, it is locked by the third locking bolt 9.

[0031] The working principle of this embodiment is as follows: the medical staff first rotates the adjustment plate horizontally to the target position, records the position information on the dial, and then tightens the first locking bolt, controls the position of the biopsy needle fixing mechanism in the adjustment slot, determines the initial puncture angle, records the position information on the adjustment plate, tightens the second locking bolt, and the biopsy needle passes through the rotating sphere to determine the final puncture angle within a small range, and then tightens the third locking bolt. The data can be recorded the next time the same tumor is punctured, facilitating operation.

[0032] Several points that need to be explained are: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, which can be mechanical connection or electrical connection, or internal communication between two elements, or direct connection. "Up", "down", "left", "right" and the like are only used to indicate relative position relationships. When the absolute position of the described object changes, the relative position relationship may change; secondly, in this article, relational terms such as first and second are only used to distinguish one entity from another, and do not necessarily require or imply that there is any such actual relationship or order between these entities.

[0033] The above examples are merely illustrative of the present invention and do not limit the scope of protection of the present invention. Any design that is identical or similar to the present invention falls within the scope of protection of the present invention.

Claims

1. A multi-angle puncture device, comprising a puncture device body and a biopsy needle (2), characterized in that: The puncture device body comprises a positioning assembly (1), a hollow puncture portion is provided at the center of the positioning assembly (1), an annular scale plate (3) is provided on the surface of the positioning assembly (1), a limiting retaining edge (4) is provided on the inner side of the scale plate (3) and is fitted with the edge of the puncture portion, an arc-shaped adjustment plate (5) is provided above the scale plate (3), the scale plate (3) and the adjustment plate (5) form a first adjustment structure, an adjustment slot (51) is provided on the adjustment plate (5), a biopsy needle fixing mechanism (6) is installed on one side of the adjustment plate (5), and the adjustment plate (5) and the biopsy needle fixing mechanism (6) form a second adjustment mechanism.

2. The multi-angle puncture device according to claim 1, characterized in that: At least four groups of folding grooves (11) distributed at equal angles are provided on the surface of the positioning component (1) on the side close to the scale plate (3), and the cross section of the folding grooves (11) is V-shaped.

3. The multi-angle puncture device according to claim 1, characterized in that: A slide groove is provided between the scale plate (3) and the limiting retaining edge (4); an inverted T-shaped slider (52) is provided at the end of the adjustment plate (5) and is clamped between the scale plate (3) and the limiting retaining edge (4); a locking block (53) is extended from the slider (52) along the direction of the slide groove; and a first locking bolt (7) is provided on the locking block (53) and is perpendicular to the positioning assembly (1).

4. The multi-angle puncture device according to claim 3, characterized in that: The base of the graduated plate (3) and the limiting retaining edge (4) is provided with an inverted Y-shaped slot (31) corresponding to the folding slot (11).

5. The multi-angle puncture device according to claim 1, characterized in that: The edges of the adjustment slots (51) on both sides of the adjustment plate (5) are provided with scale marks, and the scale range is ±40°. A second locking bolt (8) is provided on the side of the adjustment plate (5) away from the biopsy needle fixing mechanism (6).

6. The multi-angle puncture device according to claim 1, characterized in that: The biopsy needle fixing mechanism (6) comprises a positioning portion (61) formed by fixedly connecting two hollow shells of the same structure. The center of the positioning portion (61) is provided with a hollow structure and a self-rotating sphere (62) is provided in the hollow structure. A through hole for passing the biopsy needle (2) is provided in the self-rotating sphere (62).

7. The multi-angle puncture device according to claim 6, characterized in that: One side of the positioning portion (61) is connected to a second locking bolt (8) passing through the adjustment plate (5), and a third locking bolt (9) is provided on a side of the positioning portion (61) away from the adjustment plate (5).

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