An ultrasonic imaging puncture needle and a static therapy puncture device
By setting a wave-concentrating groove structure on the inner wall of the needle, ultrasonic waves are concentrated and reflected, solving the problem of poor imaging in the prior art and achieving precise positioning of the needle tip and improved imaging effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 威高奋威健康科技发展(上海)有限公司
- Filing Date
- 2025-04-30
- Publication Date
- 2026-08-04
AI Technical Summary
The existing ultrasound imaging needles produce chaotic and scattered ultrasound feedback with few echoes, resulting in inaccurate needle tip positioning and a high risk of vascular rupture or sample displacement.
A focusing groove is provided on the inner wall of the needle, including an echo surface and a focusing port. Ultrasonic waves enter the groove through the focusing port and are reflected by the echo surface, focusing and concentrating back to the ultrasonic probe, thereby improving the imaging effect.
It improves the positioning accuracy of the needle tip, avoids blood vessel rupture and sampling position deviation, and enhances the imaging effect.
Smart Images
Figure CN224584827U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ultrasound imaging technology, and in particular to an ultrasound imaging puncture needle and intravenous puncture device. Background Technology
[0002] An ultrasound-enhanced puncture needle is a type of puncture needle that can be clearly visualized under ultrasound equipment. Ultrasound waves are emitted onto the puncture needle by the ultrasound equipment. When the waves encounter the reflective structures of the puncture needle, they are reflected. These reflected signals are received by the probe and converted into electrical signals. Finally, the signals are processed by a computer into a specific image, allowing doctors to observe the exact location of the puncture needle inside the body in real time, thereby improving the accuracy and success rate of the puncture.
[0003] Currently, the imaging structures of ultrasound-enhanced puncture needles are primarily located on the outside of the needle tube and needle tip, as well as inside the needle tip. In existing technologies, the imaging structure inside the needle tip consists of protruding dots that reflect ultrasound waves through the recessed areas between the dots. However, the resulting ultrasound waves are scattered and disorganized, with few echoes, leading to poor imaging results. Consequently, it is impossible to accurately locate the needle tip, which can easily cause blood vessel rupture or sampling position deviation during puncture. Utility Model Content
[0004] The purpose of this invention is to provide an ultrasound imaging puncture needle and intravenous puncture device to solve the problems in the prior art where the ultrasound feedback from the imaging structure is chaotic and scattered, with few echoes, resulting in poor imaging effect. Therefore, it is impossible to accurately position the needle tip, which can easily lead to blood vessel rupture or sampling position deviation during puncture.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] On one hand, this utility model provides an ultrasonic imaging puncture needle, including a needle tube and a needle tip disposed at the end of the needle tube. The needle tip has a cutting edge, and at least a portion of the inner wall of the needle tip corresponding to the cutting edge is provided with a focusing groove. The focusing groove includes an echo surface and a focusing port, and at least a portion of the focusing port is connected to the boundary of the echo surface. Ultrasonic waves can enter the focusing groove through the focusing port and can be emitted from the focusing port through reflection from the echo surface. The focusing port is used to collect the reflected ultrasonic waves.
[0007] As an alternative to the aforementioned ultrasonic imaging puncture needle, the focusing groove is a dot-shaped structure, and the focusing groove includes several of them, which are arranged in an array; the transverse dimension of the cross-section of the focusing groove along the needle axis remains unchanged or increases towards the inner wall of the needle.
[0008] As an alternative to the aforementioned ultrasound imaging puncture needle, the cross-section of the focusing groove along the needle axis is rectangular, trapezoidal, or triangular; when the cross-section of the focusing groove along the needle axis is rectangular or trapezoidal, the echo surface includes an echo bottom surface and an echo side surface, the echo bottom surface is parallel to the needle axis, and the included angle between the echo bottom surface and the echo side surface is in the range of 90° to 135°.
[0009] As an alternative to the aforementioned ultrasound imaging puncture needle, the cross-section of the focusing groove along the needle axis is arc-shaped, and the echo surface is an arched surface.
[0010] As an alternative to the aforementioned ultrasound imaging puncture needle, one row of the several wave-focusing grooves is arranged opposite to the needle tip along the axial direction of the needle tip.
[0011] As an alternative to the aforementioned ultrasound imaging puncture needle, the concentrating groove is a continuous linear structure that extends vertically, obliquely, flexibly, or wavyly along the circumference of the needle tip; the transverse dimension of the concentrating groove along the axis of the needle tip remains unchanged or increases towards the inner wall of the needle tip.
[0012] As an alternative to the aforementioned ultrasound imaging puncture needle, the cross-section of the focusing groove along the needle axis is rectangular, trapezoidal, or triangular; when the cross-section of the focusing groove along the needle axis is rectangular or trapezoidal, the echo surface includes an echo bottom surface and an echo side surface, the echo bottom surface is parallel to the needle axis, and the included angle between the echo bottom surface and the echo side surface is in the range of 90° to 135°.
[0013] Alternatively, the cross-section of the wave-concentrating groove along the needle axis is arc-shaped, and the echo surface is an arched surface.
[0014] As an alternative to the aforementioned ultrasound imaging puncture needle, the depth of the focusing groove is 1 / 10 to 1 / 2 of the needle tip wall thickness, and the opening size of the focusing groove is 1 / 20 to 1 / 3 of the inner diameter of the needle tip.
[0015] As an alternative to the aforementioned ultrasonic imaging puncture needle, the angle between the cutting edge surface and the needle axis ranges from 7° to 17°.
[0016] On the other hand, this utility model provides an intravenous puncture device, including the ultrasound imaging puncture needle as described above.
[0017] The beneficial effects of this utility model are as follows:
[0018] The ultrasound imaging puncture needle includes a needle tube and a needle tip at the end of the needle tube. The needle tip has a cutting edge, and at least a portion of the inner wall of the needle tip corresponding to the cutting edge is provided with a focusing groove. The focusing groove includes an echo surface and a focusing port. At least a portion of the focusing port is connected to the boundary of the echo surface. Ultrasonic waves can enter the focusing groove through the focusing port and can be emitted from the focusing port through reflection from the echo surface. The focusing port is used to collect the reflected ultrasonic waves. Thus, when the needle tip is inserted at a certain angle, the ultrasonic waves can be concentrated in the focusing groove, and the ultrasonic waves can be reflected once or multiple times by the echo surface, and then collected by the focusing port and returned to the ultrasound probe. This improves the imaging effect, makes the needle tip position clear, and avoids the needle tip from piercing the blood vessel or the expected position, which could lead to blood vessel rupture or sampling position deviation. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of the first ultrasonic imaging puncture needle provided in the embodiment of this utility model;
[0020] Figure 2 A cross-sectional view of the first ultrasonic imaging puncture needle provided in an embodiment of this utility model;
[0021] Figure 3 This is a schematic diagram of the structure of the second type of ultrasonic imaging puncture needle provided in this embodiment of the present invention;
[0022] Figure 4 A cross-sectional view of the second type of ultrasonic imaging puncture needle provided in this embodiment of the present invention;
[0023] Figure 5 Top view of the first and second ultrasonic imaging puncture needles provided in the embodiments of this utility model;
[0024] Figure 6 This is a schematic diagram of the structure of the third type of ultrasonic imaging puncture needle provided in this embodiment of the utility model;
[0025] Figure 7 A cross-sectional view of the third type of ultrasonic imaging puncture needle provided in this embodiment of the present invention;
[0026] Figure 8 This is a schematic diagram of the structure of the fourth type of ultrasonic imaging puncture needle provided in this embodiment of the utility model;
[0027] Figure 9 A cross-sectional view of the fourth type of ultrasonic imaging puncture needle provided in this embodiment of the present invention;
[0028] Figure 10 Top views of the third and fourth ultrasonic imaging puncture needles provided in the embodiments of this utility model;
[0029] Figure 11A top view of the fifth type of ultrasonic imaging puncture needle provided in this embodiment of the present invention;
[0030] Figure 12 This is a top view of the sixth type of ultrasonic imaging puncture needle provided in this embodiment of the present invention.
[0031] In the picture:
[0032] 1. Needle tube; 2. Needle tip; 21. Blade edge; 22. Concentrating groove; 221. Echo surface; 222. Concentrating port. Detailed Implementation
[0033] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0034] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions. Moreover, "above," "on top of," and "over" the first feature in relation to the second feature includes the first feature directly above and diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" the first feature in relation to the second feature includes the first feature directly below and diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0036] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0037] like Figures 1-12 As shown, this embodiment provides an ultrasound imaging puncture needle, which can improve the accuracy and success rate of puncture.
[0038] The ultrasound imaging puncture needle includes a needle tube 1 and a needle tip 2 located at the end of the needle tube 1. The needle tip 2 has a cutting edge 21. At least a portion of the inner wall of the needle tip 2 corresponding to the cutting edge 21 is provided with a focusing groove 22. The focusing groove 22 includes an echo surface 221 and a focusing port 222. At least a portion of the focusing port 222 is connected to the boundary of the echo surface 221. Ultrasonic waves can enter the focusing groove 22 through the focusing port 222 and can be emitted from the focusing port 222 through reflection from the echo surface 221. The focusing port 222 is used to collect the reflected ultrasonic waves. Thus, when the needle tip 2 is inserted at a certain angle, the ultrasonic waves can be concentrated in the focusing groove 22. The ultrasonic waves are reflected once or multiple times by the echo surface 221 and then collected by the focusing port 222 and returned to the ultrasound probe, thereby improving the imaging effect and making the needle tip position of the needle tip obvious, avoiding the needle tip from piercing the blood vessel or the expected position, which could lead to blood vessel rupture or sampling position deviation. Optionally, the echo surface 221 can be a discontinuous surface, and the focusing port 222 can be a curved port. By directly integrating the imaging structure onto the inner wall of the needle tip 2, the accuracy of needle tip positioning under ultrasound guidance is improved. Furthermore, due to the unique groove imaging structure, the inner diameter is not affected, thus ensuring the patency of blood or guidewires.
[0039] The angle between the surface of the cutting edge 21 and the axis of the needle 2 is in the range of 7° to 17°, preferably 10° to 14°. This makes the area inside the needle 2 that receives direct ultrasonic waves larger, increases the arrangement area of the wave-concentrating groove 22 inside the needle 2, and facilitates the transmission of ultrasonic waves through the cutting edge 21 to the wave-concentrating groove 22 inside the needle 2, and realizes the echo of ultrasonic waves in a larger area, thereby improving the imaging effect. Specifically, the smaller the angle between the surface of the cutting edge 21 and the axis of the needle 2, the larger the area of the needle 2 that receives direct ultrasonic waves.
[0040] In one embodiment, such as Figures 1-5As shown, the focusing groove 22 has a point-like structure, and there are several focusing grooves 22 arranged in an array. This array arrangement ensures sufficient ultrasonic wave return while preventing the needle 2 from having insufficient structural strength, thus preventing excessive bending or even breakage during needle insertion. Compared to linear focusing grooves 22, the point-like structure has better mechanical properties and more uniform stress distribution during puncture. The dimensions of the several point-like focusing grooves 22 can be the same or different. Optionally, the several focusing grooves 22 can be arranged in a linear array, a circumferential array, or a filled array to facilitate actual processing and meet the requirements of ease of processing. The lateral dimension of the cross-section of the focusing groove 22 along the axis of the needle 2 remains constant or increases towards the inner wall of the needle 2 to enhance the imaging effect.
[0041] Specifically, a number of wave-gathering grooves 22 are arranged in an array, that is, on the arc-shaped inner wall of the needle tip 2, a number of wave-gathering grooves 22 are spaced sequentially along a single straight line or a specified direction to form a straight line arrangement structure with equal spacing or increasing spacing; a number of wave-gathering grooves 22 are arranged in a circumferential array, that is, on the arc-shaped inner wall of the needle tip 2, a number of wave-gathering grooves 22 are arranged in a ring around a central axis or a reference circle; a number of wave-gathering grooves 22 are arranged in a filling array, that is, on the arc-shaped inner wall of the needle tip 2, a number of wave-gathering grooves 22 are arranged in a densely filled arrangement structure within a predefined area according to specified rules.
[0042] Among them, one row of wave-focusing grooves 22 is arranged opposite to the needle tip of the needle 2 along the axial direction of the needle 2, so that the distal end of the needle 2 at that point is the needle tip, thereby improving the accuracy of needle tip positioning under ultrasound guidance, and the axial direction of the needle 2 is parallel to the extension direction of the needle 2.
[0043] Furthermore, such as Figure 1 and Figure 2 As shown, the cross-section of the focusing groove 22 along the axis of the needle tip 2 is rectangular, trapezoidal, or triangular. When the cross-section of the focusing groove 22 along the axis of the needle tip 2 is rectangular or trapezoidal, the echo surface 221 includes an echo bottom surface and an echo side surface. The echo bottom surface is parallel to the axis of the needle tip 2, and the shape of the echo bottom surface is not limited. The included angle between the echo bottom surface and the echo side surface is in the range of 90° to 135°. Thus, the ultrasonic wave can be reflected once or multiple times between the echo bottom surface and the echo side surface of the focusing groove 22, and finally emitted through the focusing port 222. Optionally, the focusing groove 22 is a cylindrical groove.
[0044] Furthermore, such as Figure 3 and Figure 4As shown, the cross-section of the focusing groove 22 along the axis of the needle tip 2 is arc-shaped, and the echo surface 221 is an arched surface, so that the ultrasonic wave can be reflected once or multiple times within the arched surface of the focusing groove 22, and finally emitted through the focusing port 222. Optionally, the focusing groove 22 is a hemispherical groove.
[0045] In this embodiment, the length and depth of the concentrating groove 22 are sufficient to ensure both imaging effect and the mechanical properties of the needle tip, i.e., to prevent stress concentration during puncture. The actual structural dimensions, actual opening dimensions, and actual spacing between adjacent concentrating grooves 22 are not limited, as long as the mechanical properties of the needle tip are guaranteed, stress distribution is uniform during puncture, and imaging effect is achieved. Preferably, the depth of the concentrating groove 22 is 1 / 10 to 1 / 2 of the needle tip 2 wall thickness, which better meets the above requirements; the opening size of the concentrating groove 22 is 1 / 20 to 1 / 3 of the inner diameter of the needle tip 2, resulting in better imaging effect.
[0046] In a specific embodiment where the focusing groove 22 has a point-like structure, when the cross-section of the focusing groove 22 along the axis of the needle tip 2 is rectangular or trapezoidal, the cross-sectional length of the bottom surface of the echo is 0.1 mm, and the cross-sectional length of the side surface of the echo is 0.05 mm. Thus, when the ultrasound-enhanced puncture needle is a 21G intravenous puncture needle with an inner diameter range of 0.5 mm to 0.6 mm, the size of the focusing groove 22 can effectively meet the application requirements of the puncture needle in the corresponding blood vessels and application scenarios. When the cross-section of the focusing groove 22 along the axis of the needle tip 2 is arc-shaped, and the echo surface 221 is an arched surface, the cross-sectional diameter of the arched surface is 0.1 mm. Thus, when the ultrasound-enhanced puncture needle is a 21G intravenous puncture needle with an inner diameter range of 0.5 mm to 0.6 mm, the size of the focusing groove 22 can effectively meet the application requirements of the puncture needle in the corresponding blood vessels and application scenarios.
[0047] In another embodiment, such as Figures 6-12As shown, the focusing groove 22 is a continuous linear structure extending vertically, obliquely, curvedly, or wavyly along the circumference of the needle tip 2. This allows for different shapes to meet the needs of actual working conditions. Furthermore, the continuous linear structure of the focusing groove 22 makes the ultrasound imaging needle more resistant to swaying. That is, when the doctor performs puncture, the needle opening may rotate slightly and not be directly facing the probe. Even in this case, the ultrasound imaging needle with the continuous linear structure of the focusing groove 22 can still guarantee imaging results. The focusing groove 22 includes one or more grooves. When there are multiple grooves 22, they are spaced apart along the axis of the needle tip 2, or at least two grooves are staggered along the axis of the needle tip 2. This results in a larger overall area of the focusing grooves 22 inside the needle tip 2, allowing the multiple grooves 22 to effectively reflect the ultrasound waves entering from the cutting edge 21, thereby increasing the effective feature area of the imaging structure. The lateral dimension of the concentrating groove 22 along the axis of the needle 2 is set to remain unchanged or increase towards the inner wall of the needle 2, thereby increasing the developing effect. Optionally, the cross-sectional dimensions along the extension direction of the continuous linear structure can be the same or different, preferably the same, which simplifies the processing and allows the concentrating groove 22 to extend onto the cutting edge 21.
[0048] Specifically, the continuous linear converging groove 22 extending vertically along the circumference of the needle tip 2 is an arc-shaped groove that bends with the axis of the needle tip 2 as the center line; the continuous linear converging groove 22 extending obliquely along the circumference of the needle tip 2 is a spiral groove that spirals with the axis of the needle tip 2 as the center line; the continuous linear converging groove 22 extending and curving along the circumference of the needle tip 2 is an oblique arc-shaped groove that bends with the axis of the needle tip 2 as the center line and simultaneously with the radial line of the needle tip 2 passing through the cutting edge 21 as the center line; the continuous linear converging groove 22 extending and wavy along the circumference of the needle tip 2 is a wavy groove that bends with the axis of the needle tip 2 as the center line and simultaneously with the radial line of the needle tip 2 passing through the cutting edge 21 as the center line.
[0049] Furthermore, such as Figure 6 and Figure 7 As shown, the cross-section of the focusing groove 22 along the axis of the needle tip 2 is rectangular, trapezoidal, or triangular. When the cross-section of the focusing groove 22 along the axis of the needle tip 2 is rectangular or trapezoidal, the echo surface 221 includes an echo bottom surface and an echo side surface. The echo bottom surface is parallel to the axis of the needle tip 2, and the included angle between the echo bottom surface and the echo side surface is in the range of 90° to 135°. Thus, the ultrasonic wave can be reflected once or multiple times between the echo bottom surface and the echo side surface of the focusing groove 22, and finally emitted through the focusing port 222. Optionally, the focusing groove 22 is a frustum-shaped groove or a cylindrical groove.
[0050] Furthermore, such as Figure 8 and Figure 9 As shown, the cross-section of the focusing groove 22 along the axis of the needle tip 2 is arc-shaped, and the echo surface 221 is an arched surface, so that the ultrasonic wave can be reflected once or multiple times within the arched surface of the focusing groove 22, and finally emitted through the focusing port 222. Optionally, the focusing groove 22 is an arched groove.
[0051] In this embodiment, the length and depth of the concentrating groove 22 are sufficient to ensure both imaging effect and the mechanical properties of the needle tip, i.e., to prevent stress concentration during puncture. The actual structural dimensions, actual opening dimensions, and actual spacing between adjacent concentrating grooves 22 are not limited, as long as the mechanical properties of the needle tip are guaranteed, stress distribution is uniform during puncture, and imaging effect is achieved. Preferably, the depth of the concentrating groove 22 is 1 / 10 to 1 / 2 of the needle tip 2 wall thickness, which better meets the above requirements; the opening size of the concentrating groove 22 is 1 / 20 to 1 / 3 of the inner diameter of the needle tip 2, resulting in better imaging effect.
[0052] In a specific embodiment where the focusing groove 22 is a continuous linear structure, when the cross-section of the focusing groove 22 along the axis of the needle tip 2 is rectangular or trapezoidal, the cross-sectional length of the bottom surface of the echo is 0.1 mm, and the cross-sectional length of the side surface of the echo is 0.05 mm. Thus, when the ultrasound-enhanced puncture needle is a 21G intravenous puncture needle with an inner diameter range of 0.5 mm to 0.6 mm, the size of the focusing groove 22 can effectively meet the application requirements of the puncture needle in the corresponding blood vessels and application scenarios. When the cross-section of the focusing groove 22 along the axis of the needle tip 2 is arc-shaped, and the echo surface 221 is an arched surface, the cross-sectional diameter of the arched surface is 0.1 mm. Thus, when the ultrasound-enhanced puncture needle is a 21G intravenous puncture needle with an inner diameter range of 0.5 mm to 0.6 mm, the size of the focusing groove 22 can effectively meet the application requirements of the puncture needle in the corresponding blood vessels and application scenarios.
[0053] This embodiment also provides an intravenous puncture device, including the ultrasound imaging puncture needle as described above. By using the ultrasound imaging puncture needle as described above, the intravenous puncture device can reduce the energy loss of the echo, further increase the energy returned from the focusing groove 22 to the ultrasound probe, improve the imaging effect, make the needle tip position of the needle 2 obvious, and avoid the needle tip from piercing the blood vessel or the expected position, which could lead to blood vessel rupture or sampling position deviation.
[0054] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.
Claims
1. An ultrasound visualization puncture needle, characterized by, The device includes a needle tube (1) and a needle tip (2) located at the end of the needle tube (1). The needle tip (2) has a cutting edge (21), and at least a portion of the inner wall of the needle tip (2) corresponding to the cutting edge (21) is provided with a focusing groove (22). The focusing groove (22) includes an echo surface (221) and a focusing port (222). At least a portion of the focusing port (222) is connected to the boundary of the echo surface (221). Ultrasonic waves can enter the focusing groove (22) through the focusing port (222) and can be emitted from the focusing port (222) through reflection from the echo surface (221). The focusing port (222) is used to collect the reflected ultrasonic waves.
2. The ultrasonically visualized puncture needle according to claim 1, characterized in that The wave-gathering groove (22) is a dot-shaped structure, and the wave-gathering groove (22) includes a plurality of them, which are arranged in an array; the transverse dimension of the cross section of the wave-gathering groove (22) along the axis of the needle (2) remains unchanged or increases toward the inner wall of the needle (2).
3. The ultrasonically visualized puncture needle of claim 2, wherein, The cross-section of the wave-gathering groove (22) along the axis of the needle (2) is rectangular, trapezoidal, or triangular; when the cross-section of the wave-gathering groove (22) along the axis of the needle (2) is rectangular or trapezoidal, the echo surface (221) includes an echo bottom surface and an echo side surface, the echo bottom surface is parallel to the axis of the needle (2), and the included angle between the echo bottom surface and the echo side surface is in the range of 90° to 135°.
4. The ultrasonically visualized puncture needle of claim 2, wherein, The cross-section of the wave-gathering groove (22) along the axis of the needle (2) is arc-shaped, and the echo surface (221) is an arch-shaped surface.
5. The ultrasonically visualized puncture needle of claim 2, wherein, One of the several wave-gathering grooves (22) is arranged opposite to the tip of the needle (2) along the axial direction of the needle (2).
6. The ultrasonic visualization needle of claim 1, wherein, The wave-gathering groove (22) is a continuous linear structure that extends vertically, obliquely, in a curved manner, or in a wave-like manner along the circumference of the needle (2); the transverse dimension of the cross section of the wave-gathering groove (22) along the axis of the needle (2) remains unchanged or increases toward the inner wall of the needle (2).
7. The ultrasonically visualized puncture needle of claim 6, wherein, The cross-section of the wave-gathering groove (22) along the axis of the needle (2) is rectangular, trapezoidal, or triangular; when the cross-section of the wave-gathering groove (22) along the axis of the needle (2) is rectangular or trapezoidal, the echo surface (221) includes an echo bottom surface and an echo side surface, the echo bottom surface is parallel to the axis of the needle (2), and the included angle between the echo bottom surface and the echo side surface is in the range of 90° to 135°; Alternatively, the cross-section of the wave-gathering groove (22) along the axis of the needle (2) is arc-shaped, and the echo surface (221) is an arch-shaped surface.
8. The ultrasound visualizing puncture needle according to any one of claims 1 to 7, characterized in that The depth of the wave-gathering groove (22) is 1 / 10 to 1 / 2 of the wall thickness of the needle (2), and the opening size of the wave-gathering groove (22) is 1 / 20 to 1 / 3 of the inner wall diameter of the needle (2).
9. The ultrasound visualization needle of any of claims 1-7, wherein, The angle between the surface of the cutting edge (21) and the axis of the needle (2) is in the range of 7° to 17°.
10. A theranostic puncturing device, characterized by Includes the ultrasound imaging puncture needle as described in any one of claims 1 to 9.