Needle mounting structure, puncture frame and ultrasonic puncture device

Abstract

The utility model discloses a needle installation structure, puncture frame and ultrasonic puncture device, including installation seat, adjusting piece, fixing piece and needle groove piece, the adjusting piece is provided on the installation seat and can rotate on the installation seat, the fixing piece is used for fixing or unfixing the adjusting piece and the installation seat, the needle groove piece is provided on the adjusting piece, the needle groove piece is used for installing the needle. The puncture angle of the needle can be adjusted, and the needle can puncture the area outside the limitation of the existing needle groove plate.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a needle mounting structure, a puncture frame, and an ultrasonic puncture device. Background Technology

[0002] Ultrasound-guided interventional diagnosis and treatment require a mounting structure to install the puncture needle on a puncture frame. The current mounting structure is generally a needle groove plate. The puncture needle is fixed to the puncture frame through the needle groove plate, and the puncture is performed under the guidance of a medical ultrasound instrument.

[0003] Existing needle groove plates generally have fixed puncture positions and angles. When puncturing, the puncture needle can only puncture the fixed point and cannot puncture areas outside the scope of the needle groove plate. It is difficult to puncture in some positions close to or far from the ultrasound probe surface. Utility Model Content

[0004] To address at least one of the problems mentioned in the background art, this utility model provides a needle mounting structure, a puncture frame, and an ultrasonic puncture device, wherein the puncture angle of the needle is adjustable and can puncture areas beyond the limits defined by existing needle groove plates.

[0005] The specific technical solution provided by this utility model is as follows:

[0006] In a first aspect, a needle mounting structure is provided, including a mounting base, an adjusting member, a fixing member, and a needle groove member. The adjusting member is disposed on the mounting base and can rotate on the mounting base. The fixing member is used to fix or release the adjusting member from the mounting base. The needle groove member is disposed on the adjusting member and is used to mount a needle.

[0007] By means of the above technical solution, the needle mounting structure of this utility model is provided with an adjusting member and a fixing member. The needle groove is set on the adjusting member. In this way, the adjusting member is first fixed to the mounting base by the fixing member. Then, the adjusting member is rotated on the mounting base, which drives the needle groove and the needle to rotate on the mounting base, thereby adjusting the puncture angle of the needle. After the adjustment is completed, the adjusting member is fixed to the mounting base by the fixing member, so that the needle groove and the needle are fixed for puncture. By adjusting the puncture angle of the needle, it is possible to puncture areas outside the limits of the existing needle groove plate.

[0008] As a preferred embodiment of the above solution, the adjusting member can move on the mounting base in the first direction or in the opposite direction.

[0009] As a preferred embodiment of the above solution, the mounting base is provided with an adjustment groove, and the adjustment component includes an adjustment rod and an adjustment block. The adjustment rod passes through the adjustment groove and is connected to the adjustment block. The adjustment rod can rotate on the adjustment groove and can move in the first direction of the adjustment groove or in the opposite direction of the first direction.

[0010] As a preferred embodiment of the above scheme, the adjusting block and the fixing member are arranged on opposite sides of the mounting base, and the fixing member is used to fix or release the adjusting rod from the mounting base.

[0011] As a preferred embodiment of the above solution, the mounting base is provided with a limiting groove that communicates with the adjustment groove. The adjustment component also includes a limiting block, which is connected between the adjustment rod and the adjustment block. The limiting block abuts against the side wall of the limiting groove and can rotate on the limiting groove and move along the first direction of the limiting groove or the opposite direction of the first direction.

[0012] As a preferred embodiment of the above solution, a plurality of locking members are provided on the side wall of the limiting groove along the first direction. When the limiting block moves to the position of the locking member along the first direction or the opposite direction of the first direction, the locking member can lock the limiting block at the corresponding position on the limiting groove.

[0013] As a preferred embodiment of the above solution, the locking component includes an arcuate groove provided on the side wall of the limiting groove, and the outer contour of the limiting block is a circle that matches the arcuate groove. When the limiting block moves to the position of the arcuate groove along the first direction or the opposite direction of the first direction, the limiting block is locked in the arcuate groove.

[0014] As a preferred embodiment of the above solution, the limiting block is an elastic limiting block with a relief groove. When the limiting block moves to the side wall of the limiting groove between adjacent arc grooves, the limiting block is squeezed by the side wall of the limiting groove and elastically deformed towards the relief groove. When the limiting block moves to the position of the arc groove, the limiting block elastically returns to its original shape and is locked in the arc groove.

[0015] Secondly, a puncture frame is provided, including a puncture frame body and the needle mounting structure as described above. One end of the mounting base of the needle mounting structure is provided with a snap-fit ​​groove, and the mounting base is snap-fitted and fixed to the puncture frame body through the snap-fit ​​groove.

[0016] By means of the above technical solution, the puncture frame of this utility model has a mounting base that is snapped onto the puncture frame body. In this way, when the puncture frame is in use, the adjusting component is first released from the mounting base by the fixing component, and then the adjusting component is rotated on the mounting base, which drives the needle groove component and the needle to rotate on the mounting base, thereby adjusting the puncture angle of the needle. After the adjustment is completed, the adjusting component is fixed to the mounting base by the fixing component, so that the needle groove component and the needle are fixed for puncture. By adjusting the puncture angle of the needle, it is possible to puncture areas outside the existing needle groove plate. This allows the puncture angle to be adjusted according to the actual situation in clinical practice to meet the clinical needs of various situations.

[0017] Thirdly, an ultrasonic puncture device is provided, including a needle, an ultrasonic probe, and a puncture frame as described above, wherein the puncture frame body is detachably connected to the ultrasonic probe, and the needle is a puncture needle.

[0018] Using the above technical solution, the ultrasonic puncture device of this utility model detects the target site of the patient through an ultrasonic probe. Based on the distance of the target site from the body surface, a suitable puncture guide channel is selected. Under the guidance of the puncture guide channel, the puncture needle reaches the target site of the patient. If the target site is located close to or far from the ultrasonic probe surface, making puncture difficult, the adjusting component is first released from the mounting base by the fixing component. Then, the adjusting component is rotated on the mounting base, driving the needle groove component and the puncture needle to rotate on the mounting base, thereby adjusting the puncture angle of the puncture needle. After adjustment, the adjusting component is fixed to the mounting base by the fixing component, thereby fixing the needle groove component and the needle for puncture. By adjusting the puncture angle of the puncture needle, puncture can be performed on locations close to or far from the ultrasonic probe surface. This allows for corresponding adjustments to the puncture angle according to actual clinical needs, meeting the clinical needs of various situations. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is another structural schematic diagram of the present invention;

[0022] Figure 3 This is a structural schematic diagram of one embodiment of the pin groove component of this utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the mounting base of this utility model;

[0024] Figure 5 This is a cross-sectional view of the mounting base and limiting block of this utility model;

[0025] Figure 6 This is a schematic diagram of the structure of the adjusting component of this utility model;

[0026] Figure 7 This is a schematic diagram of another embodiment of the needle groove component of this utility model;

[0027] Figure 8 for Figure 7 A schematic diagram of the structure of the center needle groove component. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0029] It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected to" another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "vertical," "horizontal," "left," "right," "upper," "lower," "inner," "outer," and "bottom," etc., used in this specification to indicate orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and 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, and therefore should not be construed as a limitation of the present invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] As described in the background section, interventional ultrasound is increasingly widely used in clinical diagnosis and treatment, primarily for procedures such as puncture, biopsy, fluid aspiration, and lesion drug injection under real-time ultrasound monitoring and guidance. Ultrasound-guided interventional diagnosis and treatment require a puncture frame for the ultrasound probe. Typically, the puncture needle is fixed using the puncture frame, and the puncture is performed under the guidance of a medical ultrasound instrument.

[0031] Existing puncture needles are typically mounted and fixed to a puncture frame via a needle groove plate. The needle groove plate has needle grooves, and the puncture needle is positioned within these grooves. During puncture, the needle can only puncture the fixed point along a direction parallel to the needle groove, making it impossible to puncture areas outside the groove's boundaries. This makes it difficult to puncture locations near or far from the ultrasound probe surface. The needle mounting structure of this invention is rotatable, and the puncture angle is adjustable, allowing for tilted punctures and reaching areas outside the existing needle groove boundaries. The embodiments of this invention are described in detail below. In the embodiments of this invention, the first direction refers to… Figure 1 The direction of arrow A in the diagram, i.e. Figure 1 The direction from center upwards is the opposite of the first direction. Figure 1 The direction from center downwards, right refers to Figure 1 The direction of the middle arrow B, forward refers to... Figure 1 The direction of the middle arrow C.

[0032] Example 1

[0033] See Figure 1 , Figure 2 This utility model provides a needle mounting structure, including a mounting base 1, an adjusting member 2, a fixing member 3, and a needle groove member 4. The adjusting member 2 is disposed on the mounting base 1 and can rotate on the mounting base 1. The fixing member 3 is used to fix or release the adjusting member 2 from the mounting base 1. The needle groove member 4 is disposed on the adjusting member 2 and is used to install a puncture needle (not shown).

[0034] The adjusting member 2 can move on the mounting base 1 in a first direction or the opposite direction, i.e., up and down. The mounting base 1 is provided with an adjusting groove 11, which extends in the up and down direction. The adjusting member 2 includes an adjusting rod 21 and an adjusting block 22. The adjusting rod 21 passes through the adjusting groove 11 and is connected to the adjusting block 22. The adjusting rod 21 can rotate on the adjusting groove 11 and can move in the first direction or the opposite direction of the adjusting groove 11. The adjusting block 22 and the fixing member 3 are arranged on opposite sides of the mounting base 1. The fixing member 3 is used to fix or release the adjusting rod 21 from the mounting base 1. In this embodiment, the needle groove component 4 is a needle groove arm 4, the adjusting rod 21 is a threaded rod 21, and the fixing component 3 is a nut 3 that cooperates with the threaded rod 21. By loosening the nut 3, the threaded rod 21 can move up and down along the adjusting groove 11, and drive the adjusting block 22, the needle groove arm 4, and the puncture needle to move up and down, thereby adjusting the puncture position of the puncture needle. By rotating the threaded rod 21, the adjusting block 22, and the needle groove arm 4, the puncture angle of the puncture needle can be adjusted. After the adjustment is completed, the nut 3 is tightened and pressed against the rear side wall of the mounting base 1, thereby fixing the threaded rod 21, the adjusting block 22, the needle groove arm 4, and the puncture needle.

[0035] See Figure 2 , Figure 4 , Figure 5The front side wall of the mounting base 1 is provided with a limiting groove 12 that communicates with the adjusting groove 11. The limiting groove 12 extends in the vertical direction. The adjusting member 2 also includes a limiting block 23, which is connected between the adjusting rod 21 and the adjusting block 22. The limiting block 22 abuts against the side wall of the limiting groove 12. The limiting block 23 can rotate on the limiting groove 12 and can move along the first direction or the opposite direction of the limiting groove 12. The side wall of the limiting groove 12 is provided with a plurality of locking members spaced apart along the first direction. When the limiting block 23 moves along the first direction or the opposite direction to the position of the locking member, the locking member can lock the limiting block 23 in the corresponding position on the limiting groove 12. The locking element includes an arcuate groove 121 on the side wall of the limiting groove 12. The outer contour of the limiting block 23 is circular, matching the arcuate groove 121. The diameter of the arcuate groove 121 is equal to the maximum diameter of the limiting block 23. When the limiting block 23 moves to the position of the arcuate groove 121 along the first direction or the opposite direction, the limiting block 23 is locked in the arcuate groove 121. The limiting block 23 is an elastic limiting block, and a relief groove 231 is provided on the limiting block 23. When the limiting block 23 moves to the side wall of the limiting groove 12 between adjacent arcuate grooves 121, the limiting block 23 is squeezed by the side wall of the limiting groove 12 and elastically deformed towards the relief groove 231. When the limiting block 23 moves to the position of the arcuate groove 121, the limiting block 23 elastically returns to its original shape and is locked in the arcuate groove 121.

[0036] See Figures 4 to 6In this embodiment, the arc-shaped groove 121 includes a first arc-shaped groove 122 at the upper and lower ends and a plurality of second arc-shaped grooves 123 located between the first arc-shaped grooves 122. The arc shape of the first arc-shaped groove 122 is a superior arc. When the limiting block 23 is located at the uppermost or lowermost end of the limiting groove 12, most of the outer wall of the limiting block 23 is stuck in the first arc-shaped groove 122. The second arc-shaped grooves 123 are correspondingly arranged on the opposite side wall of the limiting groove 12. The arc shape of the second arc-shaped groove 123 is a minor arc. When the limiting block 23 is located on the second arc-shaped groove 123, the relative outer wall of the limiting block 23 is stuck in the second arc-shaped groove 123. By placing the limiting block 23 in different arc-shaped grooves 121, the height of the limiting block 23, the adjusting block 22, and the needle groove arm 4 can be adjusted, thereby adjusting the puncture position of the puncture needle. The sidewalls of the limiting grooves 12 between adjacent arc-shaped grooves 121 are opposite vertical sidewalls 124. The distance between the vertical sidewalls 124 is less than the maximum diameter of the limiting block 23. Thus, when the limiting block 23 moves up and down to the vertical sidewall 124, the limiting block 23 is squeezed by the vertical sidewall 124 and elastically deformed towards the clearance groove 231. When the limiting block 23 moves to the position of the arc-shaped groove 121, the limiting block 23 elastically returns to its original shape and is locked in the arc-shaped groove 121. At this time, the limiting block 23 can also rotate in the arc-shaped groove 121 to drive the adjusting block 22 and the needle groove arm 4 to rotate to adjust the puncture angle of the puncture needle. After the adjustment is completed, the nut 3 on the threaded rod 21 is tightened to fix the position of the puncture needle. In this embodiment, the clearance groove 231 is a plurality of arc-shaped grooves 231 formed on the limiting block 23. The arc-shaped grooves 231 penetrate the front and rear sidewalls of the limiting block 23. The arc-shaped grooves 231 are connected by connecting blocks 232. The connecting blocks 232 extend to the front end of the limiting block 23 and are fixedly connected to the adjusting block 22. This enhances the overall structural strength of the limiting block 22. The number of arc-shaped grooves 231 and connecting blocks 232 is preferably three. This ensures that at least one arc-shaped groove 231 faces the vertical sidewall 124, thereby ensuring that the limiting block 23 can be squeezed and deformed by the vertical sidewall 124 when it moves. This avoids the limiting block 23 from being unable to be squeezed and deformed and thus unable to move up and down because the vertical sidewall 124 faces the connecting blocks 232 after the limiting block 23 rotates.

[0037] See Figure 3In this embodiment, the adjusting block 22 abuts against the front sidewall of the mounting base 1, and the needle groove arm 4 is mounted on the sidewall (i.e., the front sidewall) of the adjusting block 22 facing away from the mounting base 1. The needle groove arm 4 is provided with a needle guide port 41 and a needle passage groove 42 communicating with the needle guide port 41. The puncture needle is inserted into the needle passage groove 42 through the needle guide port 41. In one embodiment, the upper and lower parts of the sidewall of the adjusting block 22 are provided with a pair of outwardly protruding limiting strips 221. The limiting strips 221 are provided with a plurality of limiting protrusions 222. The limiting strips 221, the limiting protrusions 222 and the sidewall of the adjusting block 22 combine to form a through insertion limiting groove 223 that extends through the left and right ends. The needle groove arm 4 is provided with an insertion handle 43 and a protrusion 44 that cooperates with the limiting protrusions 222. The needle groove arm 4 is inserted into the insertion limiting groove 223 to the left or right through the insertion handle 43. 22. The limiting protrusion 222 and the protrusion 44 cooperate to limit the front and rear positions of the needle groove arm 4, preventing the needle groove arm 4 from falling off the adjusting block 22. When the needle groove arm 4 is installed on the adjusting block 22, the puncture needle is clamped between the side wall of the adjusting block 22 and the through needle groove 42 for fixation. When it is necessary to remove the puncture needle, the needle groove arm 4 is pulled away from the insertion limiting groove 223 along the left or right side, so that the needle groove arm 4 is separated from the adjusting block 22, and the puncture needle can be removed from the through needle groove 42 along the guide needle port 41.

[0038] See Figure 7 , Figure 8 In another embodiment, the side wall of the adjusting block 22 is provided with an arcuate groove 224, and the arcuate groove 224 is provided with a notch 225 penetrating the front end. The outer wall of the needle groove arm 4 is arcuate in shape to cooperate with the arcuate groove 224. The needle groove arm 4 is provided with a rotating handle 45. The needle groove arm 4 is inserted into the arcuate groove 224 and can rotate on the arcuate groove 224. The upper and lower sides of the arcuate groove 224 are provided with arcuate limiting edges 226. The side wall of the needle groove arm 4 is provided with a cut 46 to cooperate with the limiting edge 226. When the needle groove arm 4 is inserted into the arcuate groove 224... When the needle is inserted, it is fixed between the arc groove wall 224 and the needle groove 42. The limiting edge 226 abuts against the incision 46 to limit the needle groove arm 4 and prevent the needle groove arm 4 from sliding. When the needle needs to be removed, the needle groove arm 4 is rotated 180 degrees by rotating the handle 45 so that the needle groove 42 is aligned with the notch 225 of the arc groove wall 224. This makes it easy to remove the needle from the needle groove 42 along the guide needle port 41. Compared with the previous embodiment, this embodiment does not require separating the needle groove arm 4 from the adjusting block to remove the needle, which is convenient to operate.

[0039] The needle mounting structure of this invention can adjust the puncture position and puncture angle of the puncture needle, allowing it to puncture areas beyond the limits of existing needle groove plates. This enables clinical adjustments to the puncture angle based on actual needs, thus meeting the clinical requirements of various situations.

[0040] Example 2

[0041] See Figure 1 This utility model provides a puncture frame, including a puncture frame body 5 and a needle mounting structure as described in Embodiment 1. The mounting base 1 of the needle mounting structure has a snap-fit ​​groove 13 at its lower end, and the mounting base 1 is snapped and fixed to one end of the puncture frame body 5 through the snap-fit ​​groove 13. In this embodiment, the puncture frame body 5 is a rod-shaped structure, and a clamp 51 is provided at the end of the puncture frame body 5 away from the mounting base 1. The clamp 51 is mounted on an ultrasonic probe (not shown), and the tightness of the clamp 51 is adjustable, so it can be fitted onto ultrasonic probes of different sizes. The puncture frame body 5 can be adapted to different mounting bases 1 and ultrasonic probes, and has high versatility.

[0042] The puncture frame of this utility model has a fixed mounting base 1 attached to the puncture frame body 5. In this way, when the puncture frame is in use, the puncture position and puncture angle of the puncture needle can be adjusted to puncture areas outside the existing needle groove plate. This allows the puncture angle to be adjusted according to the actual situation in clinical practice to meet the clinical needs of various situations.

[0043] Example 3

[0044] This utility model provides an ultrasonic puncture device, including a needle, an ultrasonic probe, and a puncture frame as described in Embodiment 2. The puncture frame body 5 is detachably connected to the ultrasonic probe, and the needle is a puncture needle.

[0045] This invention relates to an ultrasonic puncture device that uses an ultrasonic probe to detect the patient's target site. Based on the distance of the target site from the body surface, a suitable puncture guide channel is selected. Guided by the puncture guide channel, the puncture needle reaches the patient's target site. If the target site is located too close to or too far from the ultrasonic probe surface, making puncture difficult, the puncture position and angle of the puncture needle can be adjusted to reach the target site. This allows for clinical adjustment of the puncture angle according to actual needs, meeting the clinical requirements of various situations.

[0046] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0047] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A pin mounting structure, characterized in that, It includes a mounting base (1), an adjusting member (2), a fixing member (3), and a needle groove member (4). The adjusting member (2) is disposed on the mounting base (1) and can rotate on the mounting base (1). The fixing member (3) is used to fix or de-fix the adjusting member (2) to the mounting base (1). The needle groove member (4) is disposed on the adjusting member (2) and is used to install a needle.

2. The needle mounting structure according to claim 1, characterized in that, The adjusting member (2) can move on the mounting base (1) in a first direction or in the opposite direction of the first direction.

3. The needle mounting structure according to claim 2, characterized in that, The mounting base (1) is provided with an adjustment groove (11). The adjustment component (2) includes an adjustment rod (21) and an adjustment block (22). The adjustment rod (21) passes through the adjustment groove (11) and is connected to the adjustment block (22). The adjustment rod (21) can rotate on the adjustment groove (11) and can move along the first direction or the opposite direction of the first direction of the adjustment groove (11).

4. The needle mounting structure according to claim 3, characterized in that, The adjusting block (22) and the fixing member (3) are disposed on opposite sides of the mounting base (1), and the fixing member (3) is used to fix or release the adjusting rod (21) from the mounting base (1).

5. The needle mounting structure according to claim 3, characterized in that, The mounting base (1) is provided with a limiting groove (12) that communicates with the adjusting groove (11). The adjusting member (2) also includes a limiting block (23). The limiting block (23) is connected between the adjusting rod (21) and the adjusting block (22). The limiting block (23) abuts against the side wall of the limiting groove (12). The limiting block (23) can rotate on the limiting groove (12) and can move along the first direction or the opposite direction of the first direction of the limiting groove (12).

6. The pin mounting structure according to claim 5, characterized in that, The side wall of the limiting groove (12) is provided with a number of locking members spaced apart along the first direction. When the limiting block (23) moves to the position of the locking member along the first direction or the opposite direction of the first direction, the locking member can lock the limiting block (23) at the corresponding position on the limiting groove (12).

7. The pin mounting structure according to claim 6, characterized in that, The locking component includes an arc groove (121) disposed on the side wall of the limiting groove (12). The outer contour of the cross section of the limiting block (23) is circular and matches the arc groove (121). When the limiting block (23) moves to the position of the arc groove (121) along the first direction or the opposite direction of the first direction, the limiting block (23) is locked in the arc groove (121).

8. The needle mounting structure according to claim 7, characterized in that, The limiting block (23) is an elastic limiting block. The limiting block (23) is provided with a relief groove (231). When the limiting block (23) moves to the side wall of the limiting groove (12) between the adjacent arc grooves (121), the limiting block (23) is squeezed by the side wall of the limiting groove (12) and elastically deformed towards the relief groove (231). When the limiting block (23) moves to the position of the arc groove (121), the limiting block (23) elastically returns to its original shape and is locked in the arc groove (121).

9. A puncture frame, characterized in that, The device includes a puncture frame body (5) and a needle mounting structure as described in any one of claims 1-8. One end of the mounting base (1) of the needle mounting structure is provided with a snap-fit ​​groove (13), and the mounting base (1) is snap-fitted and fixed to the puncture frame body (5) through the snap-fit ​​groove (13).

10. An ultrasonic puncture device, characterized in that, It includes a needle, an ultrasound probe, and a puncture frame as described in claim 9, wherein the puncture frame body (5) of the puncture frame is detachably connected to the ultrasound probe, and the needle is a puncture needle.

Images