Piercing rack and piercing device

Abstract

The present application relates to the technical field of puncture equipment, and particularly relates to a puncture frame and a puncture device, the puncture frame comprising a rotating plate, a needle slot block, a positioning seat and a ring body; the surface of the needle slot block is provided with a needle slot, and the plane where the needle slot is located is used for being attached to the surface of the rotating plate, so as to form a needle guide channel; the positioning seat is connected with the ring body, and a positioning structure is arranged between the positioning seat and the needle slot block, and the positioning structure is located on the outer side of the ring body; the first end of the rotating plate is rotationally connected with the positioning seat, and the second end can be fixed at a plurality of positions, so that the needle guide channel can be located at a plurality of angles. According to the technical scheme provided by the present application, the multi-angle adjustment of the puncture frame can be realized by plugging and unplugging the needle slot block and adjusting the rotating plate, so that the puncture frame has the advantages of simple structure and convenient operation.

Description

Technical Field

[0001] The present invention relates to the technical field of puncture equipment, and in particular to a puncture rack and a puncture device. Background Art

[0002] Ultrasound imaging equipment can display the patient's internal lesion area in real time, guiding the puncture needle to the target site under ultrasound guidance to perform cytological biopsy, histological biopsy, cyst aspiration, and treatment. Because the area displayed by the ultrasound probe is usually a flat surface, to ensure accurate puncture, a puncture holder is currently installed on the ultrasound probe to ensure that the puncture needle always remains on the ultrasound plane. This ensures that the puncture needle is always displayed on the ultrasound imaging device, allowing the doctor to adjust the puncture needle's insertion position and depth based on the image.

[0003] A biopsy stand typically consists of a positioning frame for securing the ultrasound probe and a guide device connected to the positioning frame. The guide device guides the puncture needle, ensuring it remains within the ultrasound imaging plane. The guide device can typically be switched between several fixed puncture angles to meet the needs of the puncture procedure. However, existing biopsy stands often suffer from complex structures and inconvenient adjustment. Summary of the Invention

[0004] The present invention provides a puncture frame and a puncture device, which can realize multi-angle adjustment of the puncture frame by operating a plug-in plate and a needle slot block, and has the advantages of simple structure and convenient operation.

[0005] One aspect of the present invention provides a puncture frame, comprising a rotating plate, a needle slot block, a positioning seat and a ring body; a needle slot is provided on the surface of the needle slot block, and the plane where the needle slot is located is used to fit with the surface of the rotating plate to form a guide needle channel; the positioning seat is connected to the ring body, and a positioning structure is provided between the positioning seat and the needle slot block, and the positioning structure is located on the outer side of the ring body; the first end of the rotating plate is rotatably connected to the positioning seat, and the second end can be fixed in multiple positions, so that the guide needle channel can be located at multiple angles.

[0006] Optionally, ridges are provided on both side ends of the needle groove block; two slide rails extending in directions parallel to the ridges are provided on the surface of the rotating plate, and a slide groove is formed between the slide rails and the surface of the rotating plate; when the needle groove block is plugged into the rotating plate, the ridges are located in the slide grooves.

[0007] Optionally, the positioning seat includes a first plate body and a second plate body arranged in parallel, and the first plate body and the second plate body are respectively provided with a through hole; the needle groove block and the rotating plate are located between the first plate body and the second plate body; the first end of the rotating plate is provided with a rotating shaft, and the two ends of the rotating shaft are rotatably connected to the through hole.

[0008] Optionally, the first end of the needle groove block is connected to an end plate, and the first end of the needle groove is located on a surface of the end plate.

[0009] Optionally, the positioning structure includes a card block and a card slot for accommodating the card block; the card block is arranged at both side ends of the needle groove block and is located between the ridge and the end plate; the end of the first plate body and the second plate body away from the through hole is an arc-shaped end with the through hole as the center of the circle, and the arc-shaped end is provided with a plurality of card slots arranged one by one along the arc direction.

[0010] Optionally, multiple positioning grooves are provided on opposite sides of the two plates, and the multiple positioning grooves are located on a circle with the through hole as the center. The multiple positioning grooves are arranged corresponding to the multiple snap-fits; and a protrusion for snapping into the positioning groove is provided on the side wall of the rotating plate.

[0011] Optionally, a protrusion is provided on the surface of the ridge; and a groove for engaging with the protrusion is provided on the inner surface of the horizontal plate or the vertical plate.

[0012] Optionally, the ridge is connected to the slide groove by interference fit.

[0013] Optionally, the first end of the needle slot block is provided with an end plate, and the first end of the needle slot passes through the end plate.

[0014] Optionally, the first end of the needle groove is provided with an introduction slope.

[0015] Optionally, a strip hole is provided on the rotating plate in the slide groove and arranged along the length direction of the slide groove for increasing the elastic deformation capacity of the slide rail.

[0016] Optionally, an indicator label corresponding to the bayonet is provided on the outer side wall of the first plate body and / or the second plate body.

[0017] Another aspect of the present invention provides a puncture device, comprising an ultrasonic probe and the above-mentioned puncture frame; the ring body is sleeved on the outer wall of the ultrasonic probe.

[0018] Optionally, a positioning groove is provided on the outer wall of the ultrasonic probe, and a positioning protrusion is provided on the inner wall of the ring body to engage with the positioning groove; or a positioning protrusion is provided on the outer wall of the ultrasonic probe, and a positioning groove is provided on the inner wall of the ring body to engage with the positioning protrusion.

[0019] According to the technical solution provided by the present invention, to adjust the guide needle angle of the puncture frame, the rotating plate is first adjusted to the desired angle. Then, the needle slot block is connected to the rotating plate to form a needle guide channel. Simultaneously, the needle slot block is connected to the positioning seat via a positioning structure to maintain the guide needle channel at the desired angle. By inserting and removing the needle slot block and adjusting the rotating plate, the puncture frame can be adjusted at multiple angles, resulting in a simple structure and easy operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] For purposes of illustration and not limitation, the present invention will now be described with reference to preferred embodiments thereof, particularly with reference to the accompanying drawings, in which:

[0021] Figure 1 Schematic diagram of the structure of the puncture frame provided by an embodiment of the present invention;

[0022] Figure 2a This is a schematic structural diagram of a rotating plate in a puncture stand provided in an embodiment of the present invention;

[0023] Figure 2b yes Figure 2a A partial enlarged view of the middle groove position;

[0024] Figure 3 Schematic diagram of the structure of the needle slot block in the puncture frame provided in an embodiment of the present invention;

[0025] Figure 4 This is a schematic structural diagram of the other side of the needle slot block in the puncture frame provided in an embodiment of the present invention;

[0026] Figure 5 It is a structural schematic diagram of the positioning seat and the ring body in the puncture frame provided by an embodiment of the present invention.

[0027] In the picture:

[0028] 1: Ring body; 2: Locking assembly; 3: Positioning seat; 4: Rotating plate; 5: Needle groove block;

[0029] 11: Positioning protrusion; 12: Positioning hole;

[0030] 31: through hole; 32: bayonet; 33: positioning slot; 34: indicator label; 35: plate body;

[0031] 41: rotating shaft; 42: protrusion; 43: slide rail; 44: groove; 45: strip hole;

[0032] 51: ridge; 52: end plate; 53: clamping block; 54: needle groove; 55: guide slope; 56: protrusion. DETAILED DESCRIPTION

[0033] The present application will be further described in detail below with reference to the accompanying drawings and embodiments. It will be understood that the specific embodiments described herein are intended only to explain the relevant content and are not intended to limit the present application. For the sake of simplicity, the same or similar reference numerals will be used in the description of the various embodiments of the present application for the same or similar devices / method steps.

[0034] It should be noted that, unless there is any conflict, the embodiments and features in the embodiments of this application can be combined with each other.

[0035] Figure 1Schematic diagram of the structure of the puncture frame provided by an embodiment of the present invention; Figure 2a This is a schematic structural diagram of a rotating plate in a puncture stand provided in an embodiment of the present invention; Figure 2b yes Figure 2a A partial enlarged view of the middle groove position; Figure 3 Schematic diagram of the structure of the needle slot block in the puncture frame provided in an embodiment of the present invention; Figure 4 This is a schematic structural diagram of the other side of the needle slot block in the puncture frame provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of the positioning seat and the ring body in the puncture frame provided by the embodiment of the present invention. Figures 1 to 5 As shown, the puncture frame includes a rotating plate 4, a needle slot block 5, a positioning seat 3 and a ring body 1. The shape of the ring body 1 is adapted to the shape of the ultrasonic probe to which it is connected, so that when the two are connected, the inner wall of the ring body 1 fits with the outer wall of the ultrasonic probe; the surface of the needle slot block 5 is provided with a needle slot 54, the first end of the needle slot 54 is the needle entry end, and the second end is the needle exit end. The plane where the needle slot 54 is located is used to fit with the surface of the rotating plate 4, thereby forming a closed guide needle channel; the positioning seat 3 is connected to the outer wall of the ring body 1, and a positioning structure is provided between the positioning seat 3 and the needle slot block 5; the first end of the rotating plate 4 is rotatably connected to the positioning seat 3; the rotating plate 4 is at a specified angle, the needle slot block 5 is plugged into the rotating plate 4, and is clamped with the positioning seat 3 through the positioning structure, thereby keeping the guide needle channel at the specified angle.

[0036] Before the puncture frame adjusts the guide needle angle, the needle slot block 5, the rotating plate 4, and the positioning seat 3 are separate structures. The rotating plate 4 can rotate relative to the positioning seat 3. According to the puncture requirements, the rotating plate 4 is adjusted to the desired angle. Then, the needle slot block 5 is plugged into the rotating plate 4 to form a guide needle channel with the corresponding angle. After the guide needle channel is formed, it needs to be limited to the current angle. When the needle slot block 5 and the rotating plate 4 are plugged into each other, the needle slot 54 plate can be fixedly connected to the positioning seat 3 through the positioning structure, thereby limiting the angle of the rotating plate 4. The puncture frame provided in the embodiment of the present invention can achieve multi-angle adjustment of the puncture frame by plugging and unplugging the needle slot block 5 and adjusting the angle of the rotating plate 4, giving the puncture frame the advantages of simple structure and easy operation.

[0037] like Figures 2a to 4 As shown, the needle trough block 5 is provided with ridges 51 on either side. Two slide rails 43 are spaced apart on the surface of the rotating plate 4. The slide rails 43 comprise vertical and horizontal plates. These plates, vertical and horizontal plates, and the surface of the rotating plate 4 form a slide groove. When the needle trough block 5 is connected to the rotating plate 4, the ridges 51 engage within the slide groove. The ridges 51 and the slide groove create a removable connection between the needle trough block 5 and the rotating plate 4. Preferably, the ridges 51 and the slide groove form an interference fit, which improves the stability of the connection between the needle trough block 5 and the rotating plate 4.

[0038] Continue to refer Figures 2a to 4As shown in the figure, the surface of the ridge 51 is provided with a protrusion 56; the inner surface of the horizontal plate or vertical plate is provided with a groove 44 for engaging with the protrusion 56. The protrusion 56 and groove 44 serve as a stop in the insertion direction. That is, during the insertion operation, when the protrusion 56 enters the groove 44, the insertion resistance will increase momentarily, indicating that the insertion is complete and the insertion operation can be stopped. In this embodiment of the present invention, the protrusion 56 is provided on the upper surface of the ridge 51.

[0039] Because the ridge 51 forms an interference fit with the chute, a certain amount of external force must be applied to the needle slot block 5 during insertion. This causes the ridge 51 to compress the chute, causing some deformation. The slide rail 43 and the rotating plate 4 are typically integrally formed, such as by injection molding. This provides a certain degree of connection strength between the two, increasing the likelihood of fracture when the chute deforms. As shown in Figure 2, in an embodiment of the present invention, a strip-shaped hole 45 is provided within the chute on the rotating plate 4, extending along its length. This strip-shaped hole 45 increases the elastic deformation capacity of the slide rail 43, making it less likely to crack between the slide rail 43 and the rotating plate 4.

[0040] like Figure 1 、 Figure 2a 、 Figure 2b and Figure 5 As shown, the positioning seat 3 includes two parallel plates, namely a first plate 351 and a second plate 352. A through hole 31 is provided on each of the first and second plates 351, 352. A rotating plate 4 is provided with a rotating shaft 41 at the first end, and the two ends of the rotating shaft 41 are rotatably connected to the through hole 31. The first and second plates 351, 352 are fan-shaped, with the through hole 31 provided at the first end and an arched second end. The rotating plate 4 rotates within the two fan-shaped structures with the rotating shaft 41 as the center. A plurality of positioning grooves 33 are provided on opposite sides of the first and second plates 351, 352, respectively. The plurality of positioning grooves 33 are located on a circumference centered on the through hole 31. A protrusion 42 for engaging with the positioning grooves 33 is provided on the sidewall of the rotating plate 4. In an embodiment of the present invention, five positioning grooves 33 are provided on the first plate 351 and the second plate 352, that is, the rotating plate 4 can be rotated and adjusted to five angles. Every time the rotating plate 4 rotates to a certain angle, the protrusion 42 is inserted into the corresponding positioning groove 33, which can play a preliminary limiting role on the rotating plate 4.

[0041] like Figure 1 、 Figures 3 to 5As shown, the positioning structure includes a card block 53 and a bayonet 32; the card block 53 is provided at both side ends of the needle groove block 5, and is located between the ridge 51 and the end plate 52; the end of the first plate body 351 and the second plate body 352 away from the through hole 31 is an arc-shaped end with the through hole 31 as the center of the circle, and the arc-shaped end is provided with a plurality of bayonet 32 ​​arranged along the arc direction. The number of bayonet 32 ​​is the same as the number of positioning grooves 33. When the rotating plate 4 is at the corresponding angle, the needle groove block 5 is inserted along the surface of the rotating plate 4, and the ridge 51 is plugged into the slide groove. At the same time, the card block 53 is inserted into the corresponding bayonet 32, and the card block 53 and the bayonet 32 ​​are used to limit the needle groove block 5 and the positioning seat 3. Preferably, the first end of the needle groove block 5 is provided with an end plate 52, and the first end of the needle groove 54 passes through the end plate 52. When the needle groove block 5 is plugged in and out, the handheld end plate 52 can be easily operated, such as Figure 3 and Figure 4 As shown, at the first end of the needle groove 54, i.e. the needle insertion end, an introduction slope 55 is provided, so that the first end of the needle groove 54 is in a trumpet shape. This structure enlarges the entrance diameter of the needle groove 54 and facilitates the needle insertion operation. Figure 1 As shown, an outer wall of the first plate 351 is provided with an indicator label 34 corresponding to the bayonet 32. The multiple indicator labels 34 correspond to the multiple bayonet 32 ​​one by one and serve as identification.

[0042] In an embodiment of the present invention, a puncture device is also provided, comprising an ultrasonic probe and the aforementioned puncture holder; a ring body 1 is sleeved onto the outer wall of the ultrasonic probe. Ring body 1 has a disconnection opening, which allows the ring body 1 to be appropriately enlarged in diameter when connected to the ultrasonic probe. The disconnection opening is locked or unlocked by a locking assembly 2. Positioning protrusions 11 and positioning holes 12 are provided on the inner wall of ring body 1, and positioning protrusions 11 and positioning holes 12 are respectively connected to positioning structures on the outer wall of the ultrasonic probe.

[0043] The needle outlet end of the puncture frame and the probe end of the ultrasonic probe are located on the same side. When the puncture device is used, the puncture position is first determined by using the ultrasonic probe, and then the angle of the rotating plate 4 is adjusted to the puncture angle. After the position of the rotating plate 4 is determined, the needle slot block 5 is inserted into the rotating plate 4, and the needle slot block 5 is engaged with the positioning seat 3. At this time, the installation of the puncture frame is completed and the puncture operation can be performed.

[0044] Positioning structures are also provided on the outer wall of the ultrasonic probe and the inner wall of the ring body 1, and the positioning structures can make the connection between the ultrasonic probe and the ring body 1 more stable. Figure 1 and Figure 5 As shown, the inner wall of the ring body 1 is provided with a positioning protrusion 11. Therefore, a positioning groove can be provided at a corresponding position of the ultrasonic probe. When the ultrasonic probe is connected to the ring body, the positioning protrusion 11 is engaged with the positioning groove. Alternatively, the positioning protrusion can be provided on the ultrasonic probe and a corresponding positioning groove can be provided on the ring body 1.

[0045] When a needle splitting operation is required during the operation, the needle slot block 5 is pulled out of the rotating plate 4. During the pulling-out process, the needle slot block 5 moves in the opposite direction of the puncture direction and will not interfere with the puncture needle. After the needle slot block 5 is pulled out of the rotating plate 4, the puncture needle and the puncture frame can be separated, and the puncture frame and the ultrasound probe can be directly removed.

[0046] The above specific embodiments do not limit the scope of protection of the present invention. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions may occur depending on design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention are intended to be included within the scope of protection of the present invention.

Claims

1. A puncture stand, characterized in that: It includes a rotating plate (4), a needle groove block (5), a positioning seat (3) and a ring body (1); The surface of the needle groove block (5) is provided with a needle groove (54), and the plane where the needle groove (54) is located is used to fit with the surface of the rotating plate (4) to form a needle guide channel; The positioning seat (3) is connected to the ring body (1), and the positioning seat (3) includes a first plate body (351) and a second plate body (352) arranged in parallel, and the first plate body (351) and the second plate body (352) are respectively provided with a through hole (31), and a positioning structure is provided between the positioning seat (3) and the needle groove block (5), and the positioning structure is located outside the ring body (1); The first end of the rotating plate (4) is rotatably connected to the positioning seat (3), and the second end can be fixed at multiple positions, so that the guide needle channel can be located at multiple angles. The positioning structure includes a card block (53) and a bayonet (32) for accommodating the card block (53). The card block (53) is provided at both ends of the needle groove block (5). The bayonet (32) is provided at one end of the first plate body (351) and the second plate body (352) away from the through hole (31). A plurality of positioning grooves (33) are respectively provided on opposite sides of the first plate (351) and the second plate (352), and the plurality of positioning grooves (33) are arranged in a one-to-one correspondence with the plurality of bayonet holes (32), and A convex point (42) for engaging with the positioning groove (33) is provided on the side wall of the rotating plate (4). Each time the rotating plate (4) rotates to an angle, the convex point (42) is engaged with the corresponding positioning groove (33) to achieve preliminary positioning of the rotating plate (4). After the position of the rotating plate (4) is determined, when the needle groove block (5) is slid and inserted along the surface of the rotating plate (4), the clamping block (53) is inserted into the corresponding clamping port (32). The clamping block (53) and the clamping port (32) limit the needle groove block (5) and the positioning seat (3).

2. The puncture stand according to claim 1, characterized in that: Both side ends of the needle groove block (5) are respectively provided with ridges (51); Two slide rails (43) extending in a direction parallel to the ridges are provided on the surface of the rotating plate (4) at intervals, and a slide groove is formed between the slide rails (43) and the surface of the rotating plate (4); When the needle groove block (5) is plugged into the rotating plate (4), the ridge (51) is located in the slide groove.

3. The puncture stand according to claim 2, characterized in that: The needle groove block (5) and the rotating plate (4) are located between the first plate body (351) and the second plate body (352); A rotating shaft (41) is provided at the first end of the rotating plate (4), and both ends of the rotating shaft (41) are rotatably connected to the through hole (31).

4. The puncture stand according to claim 1, 2 or 3, characterized in that: The first end of the needle groove block (5) is connected to the end plate (52), and the first end of the needle groove (54) is located on the surface of the end plate (52).

5. The puncture stand according to claim 4, characterized in that: The clamping block (53) is located between the ridge (51) and the end plate (52); One end of the first plate body (351) and the second plate body (352) away from the through hole (31) is an arc-shaped end with the through hole (31) as the center of the circle, and the arc-shaped end is provided with a plurality of bayonet holes (32) arranged along the arc direction.

6. The puncture stand according to claim 5, characterized in that: The plurality of positioning grooves (33) are located on a circumference with the through hole (31) as the center.

7. The puncture stand according to claim 2, characterized in that: The surface of the ridge (51) is provided with a protrusion (56); The inner surface of the horizontal plate or the vertical plate is provided with a groove (44) for engaging with the protrusion (56).

8. The puncture stand according to claim 2, characterized in that: The ridge (51) is connected to the slide groove by interference fit.

9. The puncture stand according to claim 4, characterized in that: The first end of the needle groove (54) is provided with an introduction slope (55).

10. The puncture stand according to claim 2, characterized in that: A strip hole (45) is provided on the rotating plate (4) in the slide groove and is arranged along the length direction of the slide groove to increase the elastic deformation capacity of the slide rail (43).

11. The puncture stand according to claim 4, characterized in that: An indication label (34) corresponding to the bayonet (32) is provided on the outer side wall of the first plate body (351) and / or the second plate body (352).

12. A puncture device, characterized in that: comprising an ultrasonic probe and a puncture stand according to any one of claims 1 to 11; The ring body (1) is sleeved on the outer wall of the ultrasonic probe.

13. The puncture device according to claim 12, characterized in that: A positioning groove is provided on the outer wall of the ultrasonic probe, and a positioning protrusion (11) is provided on the inner wall of the ring body (1) for engaging with the positioning groove. or, A positioning protrusion is provided on the outer wall of the ultrasonic probe, and a positioning groove engaged with the positioning protrusion is provided on the inner wall of the ring body (1).

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