Puncture assembly and puncture device

Abstract

The utility model provides a puncture assembly and a puncture device, the puncture assembly is arranged on a slide rail, and the puncture assembly comprises a puncture needle with a needle head and a needle handle; the driving piece is movably arranged on the sliding rail, and the needle handle can be fixed to the driving piece; the driven piece is provided with a through hole for the puncture needle to penetrate through, and the driven piece is movably arranged on the sliding rail so as to have a driven state and a static state; when the driven piece is in the driven state, the relative position of the driven piece and the needle head is not changed, and the driving piece drives the driven piece to move synchronously. When the driven piece is in the static state, the driven piece is static on the sliding rail relative to the needle head, and the driving piece can drive the needle head to stretch out of the through hole. According to the technical scheme, the problem that alignment operation of the puncture needle is inconvenient due to the fact that the safe distance between the needle head and the human body is large in the prior art is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of puncture devices, and in particular to a puncture component and a puncture device. Background Art

[0002] The puncture device includes a robotic arm, a slide rail mounted at the end of the robotic arm, and a puncture assembly mounted on the slide rail. The robotic arm moves, driving the puncture assembly with relatively low precision to move it to a rough position. The puncture assembly includes a driver movably mounted on the slide rail and a puncture needle connected to the driver. The driver moves on the slide rail, driving the puncture needle, facilitating its use.

[0003] In related art, the needle is exposed outside the drive element. When fine-tuning the position of the puncture assembly, a safe distance must be maintained between the needle and the body, as the exposed needle could injure the patient. However, this large distance prevents the needle from being positioned too far from the body when the drive element moves it, making it difficult to align the needle. Utility Model Content

[0004] The main purpose of the utility model is to provide a puncture assembly and a puncture device to solve the problem in the related art that there is a large safety distance between the needle and the human body, which makes it inconvenient to align the puncture needle.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, a puncture assembly is provided, which is arranged on a slide rail, and the puncture assembly includes: a puncture needle, having a needle head and a needle handle; a driving member, which is movably arranged on the slide rail, and the needle handle can be fixed on the driving member; a follower, the follower is provided with a through hole for the puncture needle to pass through, and the follower is movably arranged on the slide rail to have a driven state and a stationary state; wherein, when the follower is in the driven state, the relative position of the follower and the needle head remains unchanged, and the driving member drives the follower to move synchronously; when the follower is in the stationary state, the follower is stationary on the slide rail relative to the needle head, and the driving member can drive the needle head to extend out of the through hole.

[0006] Furthermore, the puncture assembly also includes a friction member arranged on the follower, and the friction member is provided with a receiving hole connected to the through hole. The puncture needle passes through the through hole and the receiving hole, and frictionally cooperates with the hole wall of the receiving hole to create friction between the puncture needle and the friction member; when the driving member moves, and the friction between the puncture needle and the friction member is greater than the resistance encountered by the follower, the driving member drives the follower to move synchronously through the friction member; when the driving member moves, and the friction between the puncture needle and the friction member is less than or equal to the resistance encountered by the follower, the follower stops on the slide rail relative to the needle head.

[0007] Furthermore, the puncture assembly also includes a fixing seat fixedly arranged on the slide rail, and the follower is movably arranged on the fixing seat.

[0008] Furthermore, the fixing seat is provided with a sliding groove extending along the moving direction of the driven member, and the driven member is provided with a sliding block capable of slidingly cooperating with the sliding groove.

[0009] Furthermore, a friction-reducing convex ring is provided on the hole wall of the through hole. There are multiple friction-reducing convex rings, which are arranged at intervals along the extension direction of the through hole. The puncture needle is inserted into the multiple friction-reducing convex rings.

[0010] Furthermore, the follower includes a driven body connected to the slide rail and a driven cover body connected to the driven body in an openable and closable manner. The driven cover body has a first open state opened from the driven body and a first covered state covered on the driven body. A first opening groove is provided on the driven body, and a second opening groove is provided on the driven cover body. When the driven cover body is in the first covered state, the first opening groove and the second opening groove form a through hole.

[0011] Furthermore, a first magnetic member is provided on the driven body, and a second magnetic member is provided on the driven cover. When the driven cover is in the first covering state, the first magnetic member and the second magnetic member are magnetically engaged.

[0012] Furthermore, the driving member includes a driving body connected to the slide rail and a driving cover body connected to the driving body in an openable and closable manner. The driving cover body has a second open state in which it is opened from the driving body to allow the needle handle to be removed from the driving member, and a second covered state in which it is covered on the driving body to fix the needle handle in the driving member; a third magnetic member is provided on the driving body, and a fourth magnetic member is provided on the driving cover body. When the driving cover body is in the second covered state, the third magnetic member and the fourth magnetic member are magnetically matched.

[0013] Furthermore, the driving member includes a driving seat movably arranged on the slide rail and a driving body detachably arranged on the driving seat, two first clamping protrusions are relatively arranged on the driving seat, and two first swing arms are relatively arranged on the driving body, and the first swing arms have a first fixed position and a first separation position; when the first swing arms are in the first fixed position, the two first swing arms are located on the outside of the two first clamping protrusions and are clamped with the two first clamping protrusions; when the first swing arms are in the first separation position, the two first swing arms are away from each other and have a first separation gap between them and the first clamping protrusions, so that the driving body can be moved away from the driving body The puncture assembly further comprises a seat body arranged on the slide rail and a fixed seat detachably arranged on the seat body; two second clamping protrusions are relatively arranged on the seat body, and two second swing arms are relatively arranged on the fixed seat, and the second swing arms have a second fixed position and a second separation position; when the second swing arm is in the second fixed position, the two second swing arms are located on the outside of the two second clamping protrusions and are clamped with the two second clamping protrusions; when the second swing arm is in the second separation position, the two second swing arms are away from each other and have a second separation gap between them and the second clamping protrusions, so that the fixed seat can be removed from the seat body.

[0014] According to another aspect of the present invention, a puncture device is provided, comprising a robotic arm, a slide rail arranged at the end of the robotic arm, and a puncture assembly arranged on the slide rail, wherein the puncture assembly is the above-mentioned puncture assembly.

[0015] According to the technical solution of the present invention, a puncture assembly is mounted on a slide rail. The puncture assembly includes a puncture needle, a driver, and a follower. The puncture needle has a needle head and a handle. The driver is movably mounted on the slide rail. The handle can be fixed to the driver. The follower is provided with a through hole for the puncture needle to pass through. The follower is movably mounted on the slide rail to have a driven state and a stationary state. When the follower is in the driven state, the relative position of the follower and the needle head remains unchanged, and the driver drives the follower to move synchronously. When the follower is in the stationary state, the follower remains stationary on the slide rail relative to the needle head, and the driver can drive the needle head to extend from the through hole. Thus, when fine-tuning the position of the puncture assembly is required, the follower is in the driven state, and the driver, puncture needle, and follower can move synchronously, maintaining the relative position of the puncture needle head and the follower. This reduces the possibility of the puncture needle head extending from the follower and injuring a person when the driver drives the puncture needle to move. When the follower is in the driven state, the needle tip is partially located within the follower, reducing the possibility of the needle tip injuring the body. This reduces the safety distance required in related art, allowing the follower to approach the body and facilitate alignment of the puncture needle. When the puncture needle is required to be inserted, the follower is in a stationary state, allowing the needle tip to extend from the through-hole for insertion. Therefore, the technical solution of this application effectively solves the problem in related art of a large safety distance between the needle tip and the body, which makes alignment of the puncture needle difficult. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting part of this application are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 A schematic diagram of the three-dimensional structure of an embodiment of a puncture assembly according to the present utility model is shown;

[0018] Figure 2 Shown Figure 1 A schematic diagram of the three-dimensional structure of the driven part of the puncture assembly;

[0019] Figure 3 Shown Figure 1 A schematic diagram of the three-dimensional structure of the driving member of the puncture assembly;

[0020] Figure 4 Shown Figure 1 A schematic three-dimensional structural diagram of the follower of the puncture assembly from another perspective;

[0021] Figure 5 Shown Figure 1 A schematic perspective structural diagram of a driven member of a puncture assembly;

[0022] Figure 6 Shown Figure 1 A schematic diagram of the three-dimensional structure of the driving part of the puncture assembly when partially perspective.

[0023] The above drawings include the following reference numerals:

[0024] 10. Driving member; 11. Driving seat; 111. First engaging protrusion; 12. Driving body; 121. First swing arm; 122. Third magnetic member; 123. First engaging notch; 13. Driving cover; 131. Fourth magnetic member;

[0025] 20. Follower; 21. Follower body; 211. First opening slot; 212. First magnetic member; 22. Follower cover; 221. Second opening slot; 222. Second magnetic member; 23. Friction member; 231. Accommodation hole; 24. Slider;

[0026] 30. Fixed seat; 31. Slide groove; 32. Second swing arm; 33. Second engaging notch;

[0027] 40. Puncture needle; 41. Needle tip; 42. Needle handle;

[0028] 50. Slide rail;

[0029] 60. Base body; 61. Second engaging protrusion. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0032] Unless otherwise specifically stated, the relative arrangement of the parts and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to actual proportional relationships. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0033] like Figures 1 to 3 As shown, the technical solution of this embodiment is applied, and the puncture assembly is arranged on the slide rail 50. The puncture assembly includes: a puncture needle 40, a driving member 10 and a follower 20. The puncture needle 40 has a needle head 41 and a needle handle 42. The driving member 10 is movably arranged on the slide rail 50. The needle handle 42 can be fixed on the driving member 10. A through hole for the puncture needle 40 to pass through is provided on the follower 20, and the follower 20 is movably arranged on the slide rail 50 to have a driven state and a stationary state. Among them, when the follower 20 is in the driven state, the relative position of the follower 20 and the needle head 41 remains unchanged, and the driving member 10 drives the follower 20 to move synchronously. When the follower 20 is in the stationary state, the follower 20 is stationary on the slide rail 50 relative to the needle head 41, and the driving member 10 can drive the needle head 41 to extend out from the through hole.

[0034] Thus, when fine-tuning the position of the puncture assembly is required, the follower 20 is in the driven state, and the driver 10, puncture needle 40, and follower 20 can move synchronously, maintaining the relative position of the needle head 41 of the puncture needle 40 and the follower 20. This reduces the possibility of the needle head 41 of the puncture needle 40 extending from the follower 20 and injuring the patient when the driver 10 drives the puncture needle 40. When the follower 20 is in the driven state, the needle head 41 is partially located within the follower 20, reducing the possibility of the needle head 41 injuring the patient. This reduces the safety distance required in the related art, allowing the follower 20 to approach the patient and facilitate alignment of the puncture needle 40. When the puncture needle 40 is to be inserted, the follower 20 is stationary, allowing the needle head 41 to extend from the through-hole for insertion. Therefore, the technical solution of this embodiment effectively solves the problem of a large safety distance between the needle head and the patient in the related art, which makes alignment of the puncture needle difficult.

[0035] It should be noted that the needle handle 42 can be fixed to the driver 10 in the following manner: the driver 10 includes a driver body 12 connected to the slide rail 50 and a driver cover 13 openably connected to the driver body 12, and the driver cover 13 has a second open state in which it is opened from the driver body 12 to allow the needle handle 42 to be removed from the driver 10, and a second covered state in which it is covered on the driver body 12 to fix the needle handle 42 in the driver 10. When the driver cover 13 is in the second covered state, the needle handle 42 is fixed in the driver 10. When the driver cover 13 is in the second open state, the needle handle 42 can be removed from the driver 10.

[0036] like Figures 1 to 6 As shown, the puncture assembly also includes a friction member 23 disposed on the follower 20. The friction member 23 is provided with a receiving hole 231 that communicates with the through hole. The puncture needle 40 passes through the through hole and the receiving hole 231 and frictionally engages with the wall of the receiving hole 231, thereby generating friction between the puncture needle 40 and the friction member 23. When the driving member 10 moves and the friction between the puncture needle 40 and the friction member 23 is greater than the resistance experienced by the follower 20, the driving member 10 drives the follower 20 to move synchronously via the friction member 23. When the driving member 10 moves and the friction between the puncture needle 40 and the friction member 23 is less than or equal to the resistance experienced by the follower 20, the follower 20 remains stationary on the slide rail 50 relative to the needle head 41. Thus, the provision of the friction member 23 enables the follower 20 to move while the driver 10 drives the puncture needle 40 without external forces. The puncture needle 40 and the friction member 23 engage with each other, allowing the puncture needle 40 to move synchronously with the follower 20 and the driver 10 through the friction member 23. This allows the relative position of the follower 20 and the needle head 41 of the puncture needle 40 to remain unchanged, reducing the safety distance. This allows the needle head 41 to be closer to the human body during alignment, improving the accuracy of the alignment operation. When the human body contacts the follower 20, the resistance exerted by the human body on the follower 20 is greater than the friction force, allowing the puncture needle 40 to move relative to the follower 20, thereby facilitating the puncture needle 40 to penetrate the human body.

[0037] In this embodiment, the friction member 23 is made of a polymer material, and the friction member 23 is preferably made of rubber.

[0038] In other embodiments, the puncture needle 40 and the through hole are interference fit or transition fit, so that friction can be generated between the puncture needle 40 and the through hole.

[0039] like Figures 1 to 6 As shown, the puncture assembly further includes a fixed seat 30 fixedly disposed on the slide rail 50, and the driven member 20 is movably disposed on the fixed seat 30. The arrangement of the fixed seat 30 facilitates the movable arrangement of the driven member 20 on the slide rail 50 and makes the processing of the puncture assembly simpler.

[0040] like Figures 1 to 6 As shown, the fixed seat 30 is provided with a slide groove 31 extending along the moving direction of the driven member 20, and the driven member 20 is provided with a slider 24 that can slide with the slide groove 31. The matching structure of the slide groove 31 and the slider 24 is simple, easy to manufacture, and also facilitates the relative movement between the driven member 20 and the fixed seat 30.

[0041] like Figures 1 to 6 As shown, the via hole wall is provided with multiple anti-friction convex rings, spaced apart along the via hole's extension direction, and the puncture needle 40 is inserted within the plurality of anti-friction convex rings. The provision of the anti-friction convex rings can reduce the friction between the puncture needle 40 and the via hole wall, thereby facilitating the control of the friction between the friction member 23 and the puncture needle 40, thereby enabling the driver 10 to better drive the follower 20 to move synchronously via the friction member 23.

[0042] like Figures 1 to 6 As shown, the follower 20 includes a follower body 21 connected to the slide rail 50 and a follower cover 22 that is openably connected to the follower body 21. The follower cover 22 has a first open state in which it is opened from the follower body 21 and a first covered state in which it is covered on the follower body 21. The follower body 21 is provided with a first opening slot 211, and the follower cover 22 is provided with a second opening slot 221. When the follower cover 22 is in the first covered state, the first opening slot 211 and the second opening slot 221 form a through hole. The follower body 21 and the follower cover 22 have a simple structure, which facilitates the installation and removal of the puncture needle 40 in the follower 20. The first opening slot 211 and the second opening slot 221 have a simple structure. The through hole formed by the first opening slot 211 and the second opening slot 221 can allow the puncture needle 40 to pass through, and also facilitates the removal of the puncture needle 40 from the through hole. Furthermore, by virtue of the openable and closable connection between the driven cover 22 and the driven body 21, the puncture needle 40 can be quickly separated from the driven member 20, and the influence on the position of the puncture needle 40 when the puncture needle 40 is separated from the driven member 20 is reduced, so that the puncture needle 40 can be better maintained in a fixed position.

[0043] like Figures 1 to 6 As shown, the driven body 21 is provided with a first magnetic member 212, and the driven cover 22 is provided with a second magnetic member 222. When the driven cover 22 is in the first closed position, the first magnetic member 212 and the second magnetic member 222 are magnetically engaged. The simple structure of the first and second magnetic members 212 and 222 facilitates processing and facilitates switching of the driven cover between the first open position and the first closed position, thereby improving operational efficiency.

[0044] like Figures 1 to 6As shown, the driving member 10 includes a driving body 12 connected to the slide rail 50 and a driving cover 13 that is openably connected to the driving body 12. The driving cover 13 has a second open state, in which it is opened from the driving body 12 to allow the needle handle 42 to be removed from the driving member 10, and a second covered state, in which it is covered on the driving body 12 to secure the needle handle 42 within the driving member 10. The driving body 12 and the driving cover 13 have a simple structure, which facilitates the removal and securing of the needle handle 42 within the driving member 10, improves operational efficiency, and also enables the driving member 10 to be reliably connected to the needle handle 42. A third magnetic member 122 is provided on the driving body 12, and a fourth magnetic member 131 is provided on the driving cover 13. When the driving cover 13 is in the second covered state, the third magnetic member 122 and the fourth magnetic member 131 are magnetically engaged. The third magnetic member 122 and the fourth magnetic member 131 have a simple structure, which is easy to process and also facilitates the switching of the driving cover 13 between the second open state and the second covered state, thereby improving operational efficiency. Furthermore, by the openable and closable connection between the driving cover 13 and the driving body 12, the puncture needle 40 can be quickly separated from the driving member 10, and the influence on the position of the puncture needle 40 when the puncture needle 40 is separated from the driving member 10 is reduced, so that the puncture needle 40 can be better maintained in a fixed position.

[0045] In this embodiment, the drive body 12 is provided with a third opening slot, and the needle handle 42 is disposed within the third opening slot. When the drive cover 13 is in the second closed position, the drive cover 13 blocks the third opening slot, thereby securing the needle handle 42 within the drive member 10. When the drive cover 13 is in the second open position, the needle handle 42 can be removed from the third opening slot.

[0046] like Figures 1 to 6As shown, the driving member 10 includes a driving seat 11 movably mounted on the slide rail 50 and a driving body 12 detachably mounted on the driving seat 11. Two first engaging protrusions 111 are disposed opposite each other on the driving seat 11, and two first swing arms 121 are disposed opposite each other on the driving body 12. The first swing arms 121 have a first fixed position and a first separated position. When the first swing arms 121 are in the first fixed position, the two first swing arms 121 are positioned outside the two first engaging protrusions 111 and engage with the two first engaging protrusions 111. When the first swing arms 121 are in the first separated position, the two first swing arms 121 are spaced apart from each other and a first separation gap is formed between each first engaging protrusion 111, thereby enabling the driving body 12 to be removed from the driving seat 11. The arrangement of the first engaging protrusions 111 and the first swing arms 121 facilitates the disassembly and connection between the driving seat 11 and the driving body 12, improves operational efficiency, and facilitates separation of the driving body 12 from the slide rail 50. The puncture assembly also includes a base body 60 disposed on the slide rail 50 and a fixed base 30 detachably disposed on the base body 60; two second engaging protrusions 61 are disposed opposite each other on the base body 60, and two second swing arms 32 are disposed opposite each other on the fixed base 30. The second swing arms 32 have a second fixed position and a second separated position; when the second swing arms 32 are in the second fixed position, the two second swing arms 32 are located outside the two second engaging protrusions 61 and engage with the two second engaging protrusions 61; when the second swing arms 32 are in the second separated position, the two second swing arms 32 are separated from each other and a second separation gap is formed between each second engaging protrusion 61, thereby enabling the fixed base 30 to be removed from the base body 60. The provision of the second engaging protrusions 61 and the second swing arms 32 facilitates the disassembly and connection of the fixed base 30 and the base body 60, improves operational efficiency, and facilitates separation of the fixed base 30 and the transmission member from the base body 60 on the slide rail 50.

[0047] In this embodiment, a first engaging notch 123 is respectively provided on the two oppositely disposed side walls of the two first swing arms 121. When the first swing arm 121 is in the first fixed position, the first engaging protrusion 111 is engaged with the first engaging notch 123. When the first swing arm 121 is in the first separated position, the first engaging protrusion 111 is disengaged from the first engaging notch 123. A second engaging notch 33 is respectively provided on the two oppositely disposed side walls of the two second swing arms 32. When the second swing arm 32 is in the second fixed position, the second engaging protrusion 61 is engaged with the second engaging notch 33. When the second swing arm 32 is in the second separated position, the second engaging protrusion 61 is disengaged from the second engaging notch 33.

[0048] In other embodiments, the driving member 10 includes a driving seat 11 movably arranged on the slide rail 50 and a driving body 12 detachably arranged on the driving seat 11, two first clamping protrusions 111 are relatively arranged on the driving seat 11, and two first swing arms 121 are relatively arranged on the driving body 12, and the first swing arms 121 have a first fixed position and a first separation position; when the first swing arms 121 are in the first fixed position, the two first swing arms 121 are located on the outside of the two first clamping protrusions 111 and are clamped with the two first clamping protrusions 111; when the first swing arms 121 are in the first separation position, the two first swing arms 121 are away from each other and have a first separation gap between them and the first clamping protrusions 111, so that the driving body 12 can be removed from the driving seat 11. Alternatively, the puncture assembly also includes a fixed seat 30 arranged on the slide rail 50, and the follower 20 is arranged on the fixed seat 30; two second clamping protrusions 61 are relatively arranged on the fixed seat 30, and two second swing arms 32 are relatively arranged on the follower 20, and the second swing arms 32 have a second fixed position and a second separation position; when the second swing arms 32 are in the second fixed position, the two second swing arms 32 are located on the outside of the two second clamping protrusions 61 and are clamped with the two second clamping protrusions 61; when the second swing arms 32 are in the second separation position, the two second swing arms 32 are away from each other and have a second separation gap between them and the second clamping protrusions 61, so that the follower 20 can be removed from the fixed seat 30.

[0049] In this embodiment, a plurality of first connecting rods are provided on the driven cover 22 along the direction of movement of the driven member 20, and a plurality of second connecting rods are provided on the driven body 21 along the direction of movement of the driven member 20. The plurality of first connecting rods corresponds one-to-one with the plurality of second connecting rods. There are multiple first rotating shafts, each of which is inserted into a first connecting rod and a second connecting rod, such that the first connecting rod and the second connecting rod are rotatably connected about the axis of the first rotating shaft. The axes of the plurality of first rotating shafts lie on the same straight line.

[0050] In this embodiment, the fixed base 30 includes a fixed body fixed to the slide rail 50 and a closable fixed cover mounted on the fixed body. The driven body 21 is movably mounted on the fixed body, and the driven cover 22 is movably mounted on the fixed cover. The fixed cover and the fixed body are connected by a second rotating shaft, and the fixed cover rotates about the axis of the second rotating shaft. The axes of the multiple first rotating shafts are collinear with the axes of the second rotating shafts.

[0051] The present application also provides a puncture device, comprising a robotic arm, a slide rail 50 disposed at the end of the robotic arm, and a puncture assembly disposed on the slide rail 50. The puncture assembly is the aforementioned puncture assembly. Because the aforementioned puncture assembly can solve the problem in the related art of a large safety distance between the needle and the human body, which makes it difficult to align the puncture needle, a puncture device including the puncture assembly can solve the same technical problem.

[0052] In the description of the present invention, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0053] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0054] In addition, it should be noted that the use of words such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of this utility model.

[0055] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A puncture assembly, arranged on a slide rail (50), characterized in that: The puncture assembly comprises: A puncture needle (40) having a needle head (41) and a needle handle (42); A driving member (10) is movably arranged on the slide rail (50), and the needle handle (42) can be fixed on the driving member (10); A follower (20), wherein the follower (20) is provided with a through hole for the puncture needle (40) to pass through, and the follower (20) is movably arranged on the slide rail (50) to have a driven state and a stationary state; When the follower (20) is in the driven state, the relative position of the follower (20) and the needle (41) remains unchanged, and the driving member (10) drives the follower (20) to move synchronously; when the follower (20) is in the stationary state, the follower (20) is stationary on the slide rail (50) relative to the needle (41), and the driving member (10) can drive the needle (41) to extend out of the through hole.

2. The puncture assembly according to claim 1, characterized in that: The puncture assembly further includes a friction member (23) provided on the driven member (20), wherein the friction member (23) is provided with a receiving hole (231) communicating with the through hole, and the puncture needle (40) passes through the through hole and the receiving hole (231) and frictionally cooperates with the hole wall of the receiving hole (231), so that friction is generated between the puncture needle (40) and the friction member (23); When the driving member (10) moves and the friction force between the puncture needle (40) and the friction member (23) is greater than the resistance experienced by the driven member (20), the driving member (10) drives the driven member (20) to move synchronously via the friction member (23); When the driving member (10) moves and the friction force between the puncture needle (40) and the friction member (23) is less than or equal to the resistance experienced by the follower (20), the follower (20) remains stationary on the slide rail (50) relative to the needle head (41).

3. The puncture assembly according to claim 1, characterized in that: The puncture assembly further comprises a fixing seat (30) fixedly arranged on the slide rail (50), and the follower (20) is movably arranged on the fixing seat (30).

4. The puncture assembly according to claim 3, characterized in that: The fixing seat (30) is provided with a sliding groove (31) extending along the moving direction of the driven member (20), and the driven member (20) is provided with a sliding block (24) capable of slidingly cooperating with the sliding groove (31).

5. The puncture assembly according to claim 1, characterized in that: A friction-reducing convex ring is provided on the hole wall of the through hole. There are multiple friction-reducing convex rings, which are arranged at intervals along the extension direction of the through hole. The puncture needle (40) is inserted into the multiple friction-reducing convex rings.

6. The puncture assembly according to claim 1, characterized in that: The driven member (20) includes a driven body (21) connected to the slide rail (50) and a driven cover (22) connected to the driven body (21) in an openable and closable manner. The driven cover (22) has a first open state in which it is opened from the driven body (21) and a first covered state in which it is covered on the driven body (21). The driven body (21) is provided with a first opening groove (211), and the driven cover (22) is provided with a second opening groove (221). When the driven cover (22) is in the first covered state, the first opening groove (211) and the second opening groove (221) enclose the through hole.

7. The puncture assembly according to claim 6, characterized in that: The driven body (21) is provided with a first magnetic member (212), and the driven cover (22) is provided with a second magnetic member (222). When the driven cover (22) is in the first covering state, the first magnetic member (212) and the second magnetic member (222) are magnetically matched.

8. The puncture assembly according to claim 1, characterized in that: The driving member (10) comprises a driving body (12) connected to the slide rail (50) and a driving cover (13) connected to the driving body (12) in an openable and closable manner, wherein the driving cover (13) has a second open state in which it is opened from the driving body (12) so that the needle handle (42) can be taken out of the driving member (10) and a second covered state in which it is covered on the driving body (12) so that the needle handle (42) is fixed in the driving member (10); The driving body (12) is provided with a third magnetic component (122), and the driving cover (13) is provided with a fourth magnetic component (131). When the driving cover (13) is in the second covering state, the third magnetic component (122) and the fourth magnetic component (131) are magnetically matched.

9. The puncture assembly according to claim 1, characterized in that: The driving member (10) comprises a driving seat (11) movably arranged on the slide rail (50) and a driving body (12) detachably arranged on the driving seat (11), two first clamping protrusions (111) are relatively arranged on the driving seat (11), and two first swing arms (121) are relatively arranged on the driving body (12), and the first swing arms (121) have a first fixed position and a first separated position; when the first swing arms (121) are in the first fixed position, the two first swing arms (121) are located outside the two first clamping protrusions (111) and are engaged with the two first clamping protrusions (111); when the first swing arms (121) are in the first separated position, the two first swing arms (121) are away from each other and have a first separation gap between them and the first clamping protrusions (111), so that the driving body (12) can be removed from the driving seat (11); and / or, The puncture assembly further comprises a seat body (60) arranged on the slide rail (50) and a fixing seat (30) detachably arranged on the seat body (60); two second engaging protrusions (61) are relatively arranged on the seat body (60), and two second swing arms (32) are relatively arranged on the fixing seat (30), and the second swing arms (32) have a second fixed position and a second separated position; when the second swing arms (32) are in the second fixed position, the two second swing arms (32) are located outside the two second engaging protrusions (61) and are engaged with the two second engaging protrusions (61); when the second swing arms (32) are in the second separated position, the two second swing arms (32) are away from each other and have a second separation gap between them and the second engaging protrusions (61), so that the fixing seat (30) can be removed from the seat body (60).

10. A puncture device comprising a robotic arm, a slide rail (50) arranged at the end of the robotic arm, and a puncture assembly arranged on the slide rail (50), characterized in that: The puncture assembly is the puncture assembly according to any one of claims 1 to 9.

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