Blood vessel puncture device

Abstract

The invention discloses a blood vessel puncture device, and relates to the technical field of blood vessel puncture. The invention provides a blood vessel puncture device which comprises a clamping assembly used for clamping a puncture needle; the transverse driving assembly comprises a guide rod, and the clamping assembly is connected with the guide rod so that the clamping assembly can move in the axis extending direction of the guide rod; the rotary driving assembly comprises an arc-shaped guide rail, the arc-shaped guide rail is connected with the transverse driving assembly, and the transverse driving assembly can move in the extending direction of the arc-shaped guide rail so that the included angle between the extending direction of the guide rod and the vertical direction can be adjusted; the lifting driving assembly comprises a vertical guide rail, and the rotating driving assembly is configured to be connected with the vertical guide rail and can move in the extending direction of the vertical guide rail. The technical problems that in the prior art, most of blood vessel puncture structures adopt a simple driving and control mode, the movement control precision is low, and a puncture needle cannot be rapidly replaced are solved.

Description

Technical Field

[0001] This application relates to the field of vascular puncture technology, and more particularly to a vascular puncture device. Background Technology

[0002] In the field of medical blood collection, automated blood collection equipment is gradually becoming an important tool in modern medical blood collection processes due to its advantages such as high efficiency and convenience. By integrating various mechanical and electronic structures, automated blood collection equipment automates the blood collection process, greatly reducing the workload of medical staff while improving efficiency and safety.

[0003] Among them, the vascular puncture mechanism, as one of the core components of automated blood collection equipment, directly affects the success or failure of the blood collection operation and the quality of the blood collection. The main function of the vascular puncture mechanism is to hold the puncture needle and precisely drive its movement so that it can accurately puncture the blood vessel of the target user to complete the blood collection. This process requires the vascular puncture mechanism to have a high degree of precision and stability to ensure that the puncture needle can puncture the blood vessel according to the predetermined trajectory and depth, avoiding problems such as blood collection failure, increased patient pain, and vascular damage caused by inaccurate puncture.

[0004] However, most existing vascular puncture structures use relatively simple driving and control methods, resulting in low movement control precision and making it difficult to achieve precise control of the puncture needle. Summary of the Invention

[0005] The main objective of this application is to provide a vascular puncture device that addresses the technical problems of existing vascular puncture structures, which mostly employ relatively simple drive and control methods, have low movement control precision, and cannot quickly replace puncture needles.

[0006] To achieve the above objectives, this application provides a vascular puncture device, comprising: Clamping assembly for clamping the puncture needle; A lateral drive assembly includes a guide rod, and the clamping assembly is connected to the guide rod to enable the clamping assembly to move along the axial extension direction of the guide rod; A rotary drive assembly includes an arc-shaped guide rail connected to a transverse drive assembly, the transverse drive assembly being movable along the extension direction of the arc-shaped guide rail to make the angle between the extension direction of the guide rod and the vertical direction adjustable; A lifting drive assembly includes a vertical guide rail, and the rotary drive assembly is configured to be connected to the vertical guide rail and movable along its extension direction.

[0007] Optionally, the clamping assembly includes a carrier and a clamping member; the carrier has a placement groove for placing a puncture needle; the clamping member has a clamping groove; The clamping member is also connected to a power assembly, which can selectively drive the clamping groove to move in a direction close to the placement groove so that the clamping groove cooperates with the placement groove to clamp the puncture needle; or drive the clamping groove to move in a direction away from the placement groove so that the puncture needle can be placed into or removed from the placement groove.

[0008] Optionally, the placement groove includes a guide groove and a limiting groove that communicate with each other. The guide groove extends along a first direction and is used to accommodate the cylindrical portion of the puncture needle. The limiting groove extends along a second direction and is used to accommodate a limiting portion of the puncture needle that protrudes from the side wall of the cylindrical portion. The clamping member has a clamping surface, and a clamping groove is disposed at the clamping surface. The clamping groove is used to cooperate with the guide groove to clamp the cylindrical portion of the puncture needle, and the clamping surface is used to cooperate with the limiting groove to clamp the limiting portion of the puncture needle.

[0009] Optionally, the clamping member includes a lever arm and a clamping block, a first end of the lever arm is connected to the clamping block, and the clamping groove is disposed on the clamping block; The power assembly includes a drive shaft connected to a second end of the lever arm, such that a first end of the lever arm can rotate about the axis of the drive shaft. The power assembly further includes a drive motor, a drive wheel, a transmission wheel, and a driven wheel; the drive motor is mounted on the support member, the drive wheel is sleeved on the output shaft of the drive motor, the driven wheel is sleeved on the drive shaft, and the drive wheel and the driven wheel are connected by transmission through at least one transmission wheel.

[0010] Optionally, the lateral drive assembly includes a first support frame, the arc-shaped guide rail is connected to the first support frame, the guide rod is a transmission screw, the guide rod is rotatably mounted on the first support frame, the clamping assembly is provided with a connector, the connector is provided with a screw nut for cooperating with the guide rod, and the first support frame is provided with a first power source for driving the guide rod to rotate.

[0011] Optionally, the rotary drive assembly includes a second support frame, the outer wall of the arc-shaped guide rail is provided with an arc-shaped rack, a rotary motor is provided on the second support frame, and a rotary gear that meshes with the arc-shaped rack is sleeved on the output shaft of the rotary motor.

[0012] Optionally, the second support frame is further provided with at least one guide unit, the guide unit including guide wheels located on the upper and lower sides of the arc-shaped guide rail respectively, and a guide space for accommodating the arc-shaped guide rail is formed between the two guide wheels; both guide wheels have guide grooves; the outer wall of the arc-shaped guide rail is provided with guide protrusions along its extension direction, the guide protrusions being used to cooperate with the guide grooves.

[0013] Optionally, a sensor is also provided on the second support frame, and a light-blocking plate for cooperating with the sensor is provided on the arc-shaped guide rail. The sensor is electrically connected to the rotating motor so that the operating condition of the rotating motor can be adjusted through the sensor.

[0014] Optionally, the second support frame is further provided with a slide for cooperating with the vertical guide rail, the side wall of the vertical guide rail is provided with a linear rack, the second support frame is provided with a servo motor, and the output shaft of the servo motor is sleeved with a lifting gear that meshes with the linear rack.

[0015] Optionally, the lifting drive assembly further includes a connecting seat, which is connected to a robotic arm.

[0016] The beneficial effects that this application can achieve are: This application discloses a vascular puncture device. A lateral drive component allows the clamping assembly holding the puncture needle to move along the axis of a guide rod, enabling horizontal adjustment of the needle's position for precise targeting and control of the puncture depth. The arc-shaped guide rail of the rotary drive component is connected to the lateral drive component, allowing the lateral drive component to move along the arc-shaped guide rail. This adjusts the angle between the guide rod's extension direction and the vertical direction, allowing for flexible adjustment of the puncture angle to meet the requirements of different sites and situations. The vertical guide rail of the lifting drive component is connected to the rotary drive component, allowing the rotary drive component to move along the vertical guide rail, moving the entire device vertically and adjusting the needle height. This further increases the flexibility and accuracy of the puncture operation, better adapting to different patient conditions and puncture scenarios. The power component allows for rapid clamping and release of the puncture needle, enabling quick needle replacement and reducing the time required for needle changes, thus improving the efficiency of the blood collection process. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the vascular puncture device according to an embodiment of this application; Figure 2 for Figure 1 A schematic diagram of the structure when a shell is provided; Figure 3 for Figure 2 A schematic diagram of the cross-sectional structure; Figure 4 for Figure 1 A schematic diagram of the three-dimensional structure; Figure 5 This is a schematic diagram of the clamping assembly according to an embodiment of this application; Figure 6 This is a schematic diagram of the structure of the carrier component according to an embodiment of this application; Figure 7 for Figure 6 A schematic diagram of the structure when a clamping element is provided; Figure 8 This is a schematic diagram of the clamping component according to an embodiment of this application; Figure 9 This is a structural schematic diagram of the clamping assembly with the carrier component hidden in an embodiment of this application; Figure 10 This is a first three-dimensional structural diagram of the rotary drive assembly according to an embodiment of this application; Figure 11 This is a schematic diagram of the second three-dimensional structure of the rotary drive assembly according to an embodiment of this application; Figure 12 This is a schematic diagram of the structure when a robotic arm is connected.

[0018] The numbers on the map are: 10-Clamping assembly, 11-Bearing component, 12-Clamping component, 121-Lever arm, 122-Clamping block, 123-Positioning block, 124-Clamping surface, 125-Clamping groove, 13-Cover plate, 14-Piercing needle, 141-Cylinder body, 142-Limiting part, 15-Connecting component, 151-Screw nut, 16-Placement groove, 161-Guide groove, 162-Limiting groove, 17-Power assembly, 171-Drive shaft, 172-Driven wheel, 173-Transmission wheel, 174-Drive motor, 18-Switch button, 181-Button panel, 182-Indicator light, 183-Proximity sensor, 20-Lateral drive assembly, 21-Guide rod, 22-... 1. Support frame, 23-First pulley, 24-Second pulley, 25-Transmission belt, 26-First power source, 30-Rotary drive assembly, 31-Arc-shaped guide rail, 32-Second support frame, 33-Guide unit, 331-Guide protrusion, 332-Guide slot, 333-Guide wheel, 34-Arc-shaped rack, 35-Rotary motor, 36-Rotary gear, 37-Sensor, 38-Light blocking plate, 39-Slide, 40-Lifting drive assembly, 41-Vertical guide rail, 42-Linear rack, 43-Servo motor, 44-Lifting gear, 50-Mechanical arm, 60-Housing, 70-Ultrasonic module, 80-Binocular infrared module, 90-Connecting seat.

[0019] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0021] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0022] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0023] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0024] Example 1 Reference Figures 1-12 The first embodiment of this application provides a vascular puncture device, comprising: Clamping assembly 10, which is used to clamp the puncture needle 14; The lateral drive assembly 20 includes a guide rod 21, and the clamping assembly 10 is connected to the guide rod 21 so that the clamping assembly 10 can move along the axial extension direction of the guide rod 21. The rotary drive assembly 30 includes an arc-shaped guide rail 31 connected to the transverse drive assembly 20. The transverse drive assembly 20 is capable of moving along the extension direction of the arc-shaped guide rail 31 so that the angle between the extension direction of the guide rod 21 and the vertical direction is adjustable. The lifting drive assembly 40 includes a vertical guide rail 41, and the rotary drive assembly 30 is configured to be connected to the vertical guide rail 41 and to move along its extension direction.

[0025] In this embodiment, the clamping assembly 10 is used to clamp and fix the puncture needle 14. After the puncture needle 14 is fixed on the clamping assembly 10, the puncture needle 14 and the clamping assembly 10 are mounted as a first unit onto the transverse drive assembly 20. The transverse drive assembly 20 is provided with a guide rod 21, and the first unit is connected to the guide rod 21. When the first unit is driven to move by the transverse drive assembly 20, the first unit moves along the axial extension direction of the guide rod 21. It should be noted that the "transverse" in the name of the transverse drive assembly 20 does not mean that it is always horizontally transverse. Figure 3 As shown, the lateral drive assembly 20 drives the clamping assembly 10 to move in the left-right direction. In fact, when it moves to the right, it tilts downwards to the right. The rotary drive assembly 30 includes an arc-shaped guide rail 31, which is connected to the lateral drive assembly 20. The clamping assembly 10, the lateral drive assembly 20, and the puncture needle 14 are connected to the rotary drive assembly 30 as a second unit. When the second unit is driven to move by the rotary drive assembly 30, the movement path of the second unit is along the extension direction of the arc-shaped guide rail 31. The second unit rotates around the center position corresponding to the arc-shaped guide rail 31, making the angle between the extension direction of the guide rod 21 and the vertical direction adjustable. This allows adjustment of the puncture angle formed between the puncture needle 14 and the blood vessel during puncture, enabling adjustment of the insertion angle of the puncture needle 14 according to actual puncture requirements. The second unit and the rotation drive assembly 30 form a third unit. The third unit is vertically adjustable via the lifting drive assembly 40, allowing the puncture needle 14 to be moved closer to the blood vessel according to the user's body shape and blood vessel location. Through the lateral drive assembly 20, the rotation drive assembly 30, and the lifting drive assembly 40, multi-angle and multi-directional adjustment of the puncture needle 14 can be achieved, allowing the position of the puncture needle 14 to be adjusted according to actual puncture needs, thereby improving puncture accuracy.

[0026] Example 2 Based on Embodiment 1, this embodiment provides a specific structure of a clamping assembly 10, including: the clamping assembly 10 includes a carrier 11 and a clamping member 12; the carrier 11 has a placement groove 16 for placing a puncture needle 14; the clamping member 12 has a clamping groove 125; the clamping member 12 is also connected to a power assembly 17, which can selectively drive the clamping groove 125 to move in a direction close to the placement groove 16 so that the clamping groove 125 cooperates with the placement groove 16 to clamp the puncture needle 14; or drive the clamping groove 125 to move in a direction away from the placement groove 16 so that the puncture needle 14 can be placed into the placement groove 16 or taken out of the placement groove 16.

[0027] Optionally, the clamping member 12 is connected to a positioning block 123 so that when the clamping groove 125 moves away from the placement groove 16, the positioning block 123 can form a limiting structure with the carrier member 11.

[0028] In this embodiment, the carrier 11 supports the puncture needle 14, the clamping member 12, and the power assembly 17. The entire assembly formed by the carrier 11, clamping member 12, and power assembly 17 can be installed on an automated blood collection device for use. The puncture needle 14 clamping fixture in this embodiment is only used to clamp and fix the puncture needle 14. The carrier 11 may be provided with a carrier groove for accommodating the power assembly 17. A placement groove 16 is provided outside the carrier groove, and the clamping member 12 is also provided outside the carrier groove. The clamping groove 125 of the clamping member 12 can cooperate with the placement groove 16 of the carrier 11. A notch structure is provided on the side wall of the placement groove 16 so that the power assembly 17 can be connected to the clamping member 12 through the notch structure. The power assembly 17 can drive the clamping member 12 to move relative to the carrier member 11, causing the relative position between the clamping groove 125 on the clamping member 12 and the placement groove 16 on the carrier member 11 to change. When the power assembly 17 drives the clamping member 12 to move, causing the clamping groove 125 to move in a direction closer to the placement groove 16, the clamping groove 125 and the placement groove 16 cooperate to clamp the puncture needle 14. During blood collection, the clamping groove 125 and the placement groove are maintained. In the engaged state (16), when blood collection is complete and the puncture needle 14 needs to be replaced, the power unit 17 drives the clamping member 12 to move, causing the clamping groove 125 to move away from the placement groove 16, separating the clamping groove 125 from the placement groove 16. This creates a clearance space between the clamping groove 125 and the placement groove 16, allowing the puncture needle 14 to be removed from the placement groove 16 and the new puncture needle 14 to be placed into the placement groove 16 through the clearance space. By setting the power unit 17, the clamping member 12 can quickly clamp and fix the puncture needle 14, and release the clamp, ensuring the stability of the puncture needle 14 during use and enabling rapid replacement of the puncture needle 14 after blood collection.

[0029] The vascular puncture device of this embodiment is typically used in automated blood collection equipment. During use, it may be necessary to frequently perform blood collection operations on multiple different blood collection subjects. In order to eliminate the risk of cross-infection and ensure the accuracy of the test, a new puncture needle 14 is required for each different blood collection subject. This means that after the previous user has finished collecting blood, the used puncture needle 14 needs to be removed from the vascular puncture device and the unused puncture needle 14 needs to be installed on the vascular puncture device.

[0030] In this embodiment, the puncture needle 14 is clamped by the cooperation of the independent support member 11 and the clamping member 12, ensuring that the puncture needle 14 will not move randomly during the puncture process. When the puncture needle 14 needs to be replaced, the clamping member 12 is first moved away from the support member 11 by the power component 17 to release the clamping state of the puncture needle 14, so that the used puncture needle 14 can be removed. The state of the support member 11 and the clamping member 12 remains unchanged at this time, and the unused puncture needle 14 can be placed in the space between the support member 11 and the clamping member 12. Then, the clamping member 12 is moved closer to the support member 11 by the power component 17 to clamp the puncture needle 14.

[0031] The power assembly 17 can quickly achieve the clamping and unclamping of the puncture needle 14, enabling rapid replacement of the puncture needle 14 and reducing the time required for replacement, thereby improving the efficiency of the blood collection process.

[0032] Furthermore, when the clamping member 12 moves towards the carrier member 11, it forms a limiting structure with the carrier member 11 itself, meaning the clamping block 122 and the carrier member 11 cooperate to clamp and fix the puncture needle 14. However, when the clamping member 12 moves away from the carrier member 11, the power component 17 needs to stop outputting power in time. However, there may be a certain delay between the power component 17 receiving the stop signal and actually stopping, which may result in the clamping block 122 opening too wide, affecting structural stability. In this case, by adding a positioning block 123, the positioning block 123 can form a limiting structure with the carrier member 11, achieving mechanical limiting during the movement of the clamping member 12. Even if there is a certain delay in the power component 17 receiving the stop signal, the positioning block 123 on the clamping member 12 can still form a mechanical limit with the carrier member 11, preventing the clamping member 12 from further increasing its opening angle and ensuring the structural safety of the clamping member 12.

[0033] Optional, such as Figure 6As shown, the placement groove 16 includes a guide groove 161 and a limiting groove 162 that are interconnected. The guide groove 161 extends along a first direction and is used to accommodate the cylindrical portion 141 of the puncture needle 14. The limiting groove 162 extends along a second direction and is used to accommodate the limiting portion 142 of the puncture needle 14 that protrudes from the side wall of the cylindrical portion 141.

[0034] Specifically, Figure 6 In the diagram, X represents the first direction and Y represents the second direction. The puncture needle 14 includes a cylindrical portion 141 and a limiting portion 142. One end of the cylindrical portion 141 is connected to a needle tip, and the other end is connected to an infusion tube. The limiting portion 142 is located on the side wall of the cylindrical portion 141. The placement groove 16 includes a guide groove 161 and a limiting groove 162. When the cylindrical portion 141 of the puncture needle 14 is placed in the guide groove 161, the limiting portion 142 located on the side wall of the cylindrical portion 141 is placed in the limiting groove 162. The guide groove 161 is used to restrict the movement of the puncture needle 14 in the second direction, and the limiting groove 162 is used to restrict the movement of the puncture needle 14 in the first direction. When the clamping groove 125 is engaged above the puncture needle 14, the puncture needle 14 is vertically clamped and fixed, ensuring that the puncture needle 14 will not move arbitrarily. It should be noted that the limiting groove 162 can be provided on only one side of the guide groove 161, or it can be provided on both sides of the guide groove 161.

[0035] Optionally, the first direction and the second direction are perpendicular to each other.

[0036] Specifically, the first direction is perpendicular to the second direction, so that when the cylindrical part 141 of the puncture needle 14 is placed in the guide groove 161 and the limiting part 142 is placed in the limiting groove 162, the direction of movement of the cylindrical part 141 is parallel to the direction of the force of the limiting part 142 being obstructed by the side wall of the limiting groove 162. Compared with the inclined setting, the stability of the overall structure can be improved.

[0037] Optional, such as Figure 8 As shown, the clamping member 12 has a clamping surface 124 and a clamping groove 125 is disposed on the clamping surface 124. The clamping groove 125 is used to cooperate with the guide groove 161 to clamp the cylindrical part 141 of the puncture needle 14, and the clamping surface 124 is used to cooperate with the limiting groove 162 to clamp the limiting part 142 of the puncture needle 14.

[0038] Specifically, the lower end face of the clamping member 12 is configured as a clamping surface 124. The clamping surface 124 can be a plane, an inclined plane, or a stepped surface (the planes on both sides of the clamping groove 125 have different heights). The clamping groove 125 is provided on the clamping surface 124. The cross-sectional shape of the clamping groove 125 can be arc-shaped, and the groove structure of the clamping groove 125 is adapted to the upper half of the cylindrical part 141 of the horizontally placed puncture needle 14. When the clamping groove 125 clamps the puncture needle 14, part of the clamping surface 124 clamps the limiting part 142 of the puncture needle 14. At this time, the clamping surface 124 cooperates with the bottom wall of the limiting groove 162.

[0039] Optional, such as Figure 5 As shown, the clamping member 12 includes a lever arm 121 and a clamping block 122. The first end of the lever arm 121 is connected to the clamping block 122, and the clamping groove 125 is disposed on the clamping block 122.

[0040] Specifically, the right end of lever arm 121 is the first end, and the left end is the second end. Lever arm 121 and clamping block 122 are detachably connected, allowing clamping block 122 to be replaced according to actual usage needs. For example, if a clamping groove 125 with a different groove shape is required, clamping block 122 can be replaced. Lever arm 121 and clamping block 122 can be detachably connected via bolt assemblies, screw structures, etc. Similarly, lever arm 121 and clamping block 122 can also be integrally formed using 3D rigid-flex printing. In this case, when a clamping groove 125 of a different size needs to be replaced, lever arm 121 and clamping block 122 can be replaced together. Clamping block 122 can be made of a flexible material, such as rubber, to ensure flexible contact when it comes into contact with the intravenous puncture needle 14, providing a buffering effect against clamping impact and preventing motor jamming.

[0041] Optional, such as Figure 6 and Figure 7 As shown, the power assembly 17 includes a drive shaft 171, which is connected to the second end of the lever arm 121 so that the first end of the lever arm 121 can rotate about the axis of the drive shaft 171.

[0042] Specifically, the drive shaft 171 is rotatably mounted on the support member 11. During rotation, the drive shaft 171 rotates around its own axis. When the drive shaft 171 is rotated by the power component 17, the first end of the lever arm 121 can flip around the axis of the drive shaft 171. By controlling the flipping of the lever arm 121, the relative position adjustment between the clamping groove 125 and the placement groove 16 is controlled, ensuring that during repeated flipping, the clamping groove 125 always engages with the placement groove 16, rather than misaligning. It should be noted that to improve the clamping stability of the clamping member 12 on the puncture needle 14, a mounting hole for mounting the drive shaft 171 can be provided on the support member 11. The drive shaft 171 and the mounting hole can be an interference fit, meaning that the rotational drive of the lever arm 121 needs to overcome a certain external force. When the lever arm 121 is driven by the power component 17 to rotate and cooperate with the clamping groove 125 and the placement groove 16 to fix the puncture needle 14, the damping between the drive shaft 171 and the mounting hole can maintain the state of the lever arm 121 to a certain extent without external force.

[0043] Optionally, the axis of the drive shaft 171 extends in a direction orthogonal to the first direction.

[0044] Specifically, by aligning the extension direction of the drive shaft 171 orthogonal to the first direction, it is ensured that when the drive shaft 171 rotates, the first end of the lever arm 121 can move in a direction that approaches or moves away from the placement groove 16.

[0045] Optional, such as Figure 6 and Figure 7 As shown, the power assembly 17 also includes a drive motor 174, a drive wheel, a transmission wheel 173, and a driven wheel 172; the drive motor 174 is mounted on the support member 11, the drive wheel is sleeved on the output shaft of the drive motor 174, the driven wheel 172 is sleeved on the drive shaft 171, and the drive wheel and the driven wheel 172 are connected by transmission through at least one transmission wheel 173.

[0046] Specifically, the drive motor 174 is fixedly mounted on the support member 11. The drive wheel (which is obscured by the transmission wheel 173 in the figure and is not shown) can be a worm gear or a bevel gear. When the drive wheel is a worm gear, one of the transmission wheels 173 is configured with a worm that meshes with the worm gear on its shaft; when the other drive wheel is a bevel gear, one of the transmission wheels 173 is configured with a helical gear that meshes with the bevel gear. A gearbox is provided on the carrier 11, and multiple parallel transmission rods are provided on the gearbox. Each transmission rod is fitted with a transmission wheel 173. One end of the drive shaft 171 is also transmittably connected to the gearbox. The driven wheel 172 is fitted on the drive shaft 171 and is also located inside the gearbox. The drive wheel and the driven wheel 172 are connected by multiple transmission wheels 173. Through multi-stage transmission, the stability of the transmission is improved, as well as the external force that needs to be overcome when the lever arm 121 is flipped, so that the lever arm 121 can only be driven to flip clockwise or counterclockwise by the forward and reverse rotation of the drive motor 174. This ensures the structural stability when the clamping groove 125 and the placement groove 16 are in the snap-fit ​​state, and ensures that the clamping member 12 will not move arbitrarily relative to the carrier 11, thereby improving the stability of the puncture needle 14 during the blood collection process.

[0047] Optional, such as Figure 5 , Figure 7 and Figure 8 As shown, a positioning block 123 is provided at the second end of the lever arm 121. The positioning block 123 extends in a direction away from the first end of the lever arm 121 so that when the first end of the lever arm 121 moves in a direction away from the placement groove 16, the positioning block 123 can form a limiting structure with the bearing member 11.

[0048] Specifically, the positioning block 123 is located above the bearing member 11, and there is a certain gap between the positioning block 123 and the bearing member 11. When the lever arm 121 rotates counterclockwise, that is, when the first end of the lever arm 121 flips in the upward direction, the left end of the positioning block 123 moves in the direction close to the bearing plate. The positioning block 123 can abut against the bearing member 11 to form a limiting structure, so as to prevent the positioning block 123 from continuing to move, thereby limiting the maximum stroke position of the lever arm 121 flipping upward and improving the stability of the lever arm 121 structure.

[0049] Optional, such as Figure 9 As shown, a proximity sensor 183 is provided on the carrier 11, and the positioning block 123 is configured to cooperate with the proximity sensor 183 so that when the positioning block 123 moves to a preset position, the proximity sensor 183 can send a stop signal to the power assembly 17.

[0050] Specifically, a proximity sensor 183 is also provided on the support member 11, and the proximity sensor 183 is located on one side of the positioning block 123. This allows the positioning block 123 to form a mechanical limiting structure with the support member 11. During the rotation of the force arm 121 driven by the drive motor 174, the positioning block 123 can approach the proximity sensor 183. After sensing the signal from the positioning block 123, the proximity sensor 183 sends a stop signal to the drive motor 174, enabling the drive motor 174 to stop working in time and improving the safety of the structure.

[0051] Optionally, the carrier 11 is provided with a keypad 181 that is communicatively connected to the power assembly 17. The carrier 11 is also provided with a switch button 18. By driving the switch button 18, the switch button 18 can make contact with the physical button on the keypad 181 to send a control signal to the power assembly 17. The control signal is such as the start and stop of the power assembly 17.

[0052] Specifically, a keypad 181 is also provided on the carrier 11. The keypad 181 is electrically connected to the drive motor 174. Physical buttons are provided on the keypad 181, and pressing these physical buttons controls the start and stop of the drive motor 174. A switch button 18 is located on one side of the keypad 181 on the carrier 11. The switch button 18 is cylindrical and can move towards or away from the keypad 181. This allows the user to apply pressure to the switch button 18 to make it contact the physical button on the keypad 181 when changing the puncture needle 14. The position of the puncture needle 14 is close to the position of the switch button 18, eliminating the need for operation from a location such as an operating screen far from the puncture needle 14, thus facilitating user operation. It should be noted that a return spring can be provided on the switch button 18 so that it automatically resets after the user presses it.

[0053] Optionally, a cover plate 13 may be provided at the upper end of the carrier 11. The cover plate 13 cooperates with the carrier 11 to form a space for accommodating components such as the power assembly 17, proximity sensor 183, keypad 181, and switch button 18.

[0054] Optionally, an indicator light 182 is provided on the carrier 11 or on the keypad 181. The indicator light 182 is used to display the engagement status of the clamping member 12 and the carrier 11. For example, when the placement groove 16 and the clamping groove 125 are engaged to clamp the puncture needle 14, the indicator light 182 can be in a constantly lit state; when the placement groove 16 and the clamping groove 125 are in a separated state, the indicator light 182 can be in an off or flashing state. Optionally, a connector 15 is also provided on the carrier 11. The connector 15 is used to fix the carrier 11 in the target position for use.

[0055] Specifically, a connector 15 is also provided on the carrier 11. The connector 15 is used to install the clamping fixture of the puncture needle 14 of this embodiment onto the target device for use. The target device can be the robotic arm of an automatic blood collection device or the transmission structure of an automatic blood collection device, etc. Multiple connection holes are reserved on the carrier 11.

[0056] Example 3 Based on Embodiment 1, this embodiment provides a specific structure of a lateral drive assembly 20, including: the lateral drive assembly 20 includes a first support frame 22, an arc-shaped guide rail 31 connected to the first support frame 22, a guide rod 21 being a transmission screw, the guide rod 21 being rotatably mounted on the first support frame 22, a clamping assembly 10 being provided with a connector 15, the connector 15 being provided with a screw nut 151 for cooperating with the guide rod 21, and a first power source 26 for driving the guide rod 21 to rotate being provided on the first support frame 22.

[0057] Specifically, such as Figure 1 , Figure 3 and Figure 4 As shown, the first support frame 22 is a frame structure, providing support for the lateral drive assembly 20 and the clamping assembly 10. Two opposing fixing blocks are provided on the first support frame 22, and the first end of the guide rod 21 ( Figure 1 The right end shown is rotatably connected to one of the fixed blocks, and the second end of the guide rod 21 ( Figure 1 The left end (shown) passes through another fixed block and connects to the power source. The upper end of the connector 15 has a through hole for the guide rod 21 to pass through. A lead screw nut 151 is disposed in the through hole and engages with the guide rod 21. The guide rod 21 is a transmission lead screw; rotation of the guide rod 21 drives the clamping assembly 10 to move along the axis of the guide rod 21 via the lead screw nut 151, converting rotational movement into linear movement. The left and right movement of the clamping assembly 10 is achieved by reversing the transmission lead screw. The first power source 26 includes a drive motor. The drive motor drives the guide rod 21 to rotate in at least two ways. One way is that the output shaft of the drive motor can be directly connected to the second end of the guide rod 21 via a coupling. Another arrangement is that a first pulley 23 is fitted onto the second end of the guide rod 21, and a second pulley 24 is fitted onto the output shaft of the drive motor. The first pulley 23 and the second pulley 24 are connected by a transmission belt 25.

[0058] Optionally, the rotary drive assembly 30 includes a second support frame 32, an arc-shaped rack 34 is provided on the outer wall of the arc-shaped guide rail 31, a rotary motor 35 is provided on the second support frame 32, and a rotary gear 36 that meshes with the arc-shaped rack 34 is sleeved on the output shaft of the rotary motor 35.

[0059] Specifically, such as Figure 10 and Figure 11 As shown, the second support frame 32 includes two opposing support plates connected to each other by a tie rod. An arc-shaped guide rail 31 is mounted on the two support plates. The outline of the arc-shaped guide rail 31 is circular, and its center position remains unchanged during movement, allowing the position of the clamping assembly 10 to be calculated by adjusting the angle of the rotary motor 35. The rotary motor 35 is mounted on the second support frame 32, meaning the relative position of the rotary motor 35 and the second support frame 32 remains constant. The arc-shaped rack 34 can be connected to the arc-shaped guide rail 31 by bolts, welding, or integral molding.

[0060] Optionally, the second support frame 32 is also provided with at least one guide unit 33. The guide unit 33 includes guide wheels 333 located on the upper and lower sides of the arc-shaped guide rail 31, respectively. A guide space for accommodating the arc-shaped guide rail 31 is formed between the two guide wheels 333. Both guide wheels 333 have guide grooves 332. The outer wall of the arc-shaped guide rail 31 is provided with guide protrusions 331 along its extension direction. The guide protrusions 331 are used to cooperate with the guide grooves 332.

[0061] Specifically, such as Figure 3 , Figure 10 and Figure 11 As shown, the guide unit 33 includes guide wheels 333 located on the upper and lower sides of the arc-shaped guide rail 31, respectively. A guide protrusion 331 is provided at the upper end of the arc-shaped guide rail 31, and the extending direction of the guide protrusion 331 is consistent with the extending direction of the arc-shaped guide rail 31. When the arc-shaped guide rail 31 is driven to move by the arc-shaped rack 34 and the rotating gear 36, the guide protrusion 331 moves relative to the guide wheels 333. Through the cooperation of the guide protrusion 331 and the guide wheels 333, the arc-shaped guide rail 31 is supported and guided during the movement. The guide wheels 333 are rotatably mounted on the side wall of the support plate. It should be noted that another guide unit 33 is usually provided on the other side of the guide unit 33 opposite to the arc-shaped guide rail 31. That is, the arc-shaped rack 34 is located in the middle of the arc-shaped guide rail 31, and a guide protrusion 331 is provided on each side of the arc-shaped rack 34. The two guide units 33 are used simultaneously to improve the stability of the support for the arc-shaped guide rail 31 and to make the force on both sides of the arc-shaped guide rail 31 more balanced. The guide unit 33 can also clamp the arc-shaped guide rail 31, increasing the friction between the guide wheel 333 and the arc-shaped guide rail 31. That is, the movement of the arc-shaped guide rail 31 needs to overcome a certain external force. When the rotary motor 35 is working, it drives the arc-shaped guide rail 31 to move through the rotating gear 36 and the arc-shaped rack 34. At the same time, it also ensures that when the rotary motor 35 is not working, the arc-shaped guide rail 31 will not move arbitrarily, thus ensuring the stability of the puncture position.

[0062] Optionally, a sensor 37 is also provided on the second support frame 32, and a light-blocking plate 38 is provided on the arc-shaped guide rail 31 for cooperating with the sensor 37. The sensor 37 is electrically connected to the rotary motor 35 so that the operating conditions of the rotary motor 35 can be adjusted through the sensor 37.

[0063] Specifically, sensor 37 is fixedly mounted on the second support frame 32, and a light-blocking plate 38 is provided on the arc-shaped guide rail 31. The light-blocking plate 38 moves with the arc-shaped guide rail 31. When the light-blocking plate 38 moves to the target position (the position that blocks sensor 37), it transmits information to sensor 37 that the arc-shaped guide rail 31 has moved to the maximum position to the right. At this time, sensor 37 sends a control signal to rotary motor 35, causing rotary motor 35 to stop working immediately, or to stop working slowly within a certain period of time, such as within 1 second, thereby limiting the maximum stroke position of arc-shaped guide rail 31 to the left or right and ensuring the safety of the overall structure.

[0064] Optionally, the second support frame 32 is also provided with a slide 39 for cooperating with the vertical guide rail 41. The side wall of the vertical guide rail 41 is provided with a linear rack 42. The second support frame 32 is provided with a servo motor 43. The output shaft of the servo motor 43 is fitted with a lifting gear 44 that meshes with the linear rack 42.

[0065] Specifically, such as Figure 1 , Figure 3 and Figure 4 As shown, the slide 39 is fixedly connected to the second support frame 32, and the servo motor 43 is also mounted on the second support frame 32. When the servo motor 43 is working, the lifting gear 44 on the output shaft of the servo motor 43 moves along the linear rack 42, thereby realizing the overall lifting and lowering movement of the second support frame 32 and the slide 39. It should be noted that the lifting and lowering movement of the slide 39 relative to the vertical guide rail 41 also needs to overcome a certain external force, that is, the slide 39 cannot move freely up and down relative to the vertical guide rail 41, but can only achieve the lifting and lowering movement of the slide 39 relative to the vertical guide rail 41 through the forward and reverse rotation of the output shaft of the servo motor 43.

[0066] Optionally, the lifting drive assembly 40 also includes a connector 90 to which the robotic arm 50 is connected.

[0067] Optionally, a housing 60 may be provided around the transverse drive assembly 20, the rotary drive assembly 30 and the lifting drive assembly 40. The housing 60 is connected to the connecting seat 90. By providing the housing 60, the transverse drive assembly 20, the rotary drive assembly 30 and the lifting drive assembly 40 can be protected.

[0068] Specifically, such as Figure 12As shown, a robotic arm 50 is connected to the upper end of the connecting base 90. The robotic arm 50 can be mounted on a wall or used on an automated blood collection device. The robotic arm 50 can have multiple degrees of freedom, enabling large-range coarse movement of the puncture needle 14 in space. Meanwhile, through the lateral drive component 20, the rotation drive component 30, and the lifting drive component 40, small-range fine movement of the puncture needle 14 in space is achieved. Specifically, the robotic arm 50 can be used to reset the puncture needle 14 to its initial position after the previous user's puncture, ensuring that the puncture needle 14 does not interfere with the previous user leaving the puncture position or the next user moving to the puncture position. Furthermore, when the next user moves to the puncture position, the robotic arm 50 moves the puncture needle 14 closer to the blood vessel to be punctured, based on the user's body size or different puncture needs. Then, the lateral drive component 20, the rotation drive component 30, and the lifting drive component 40 precisely control the movement of the puncture needle 14 to complete the puncture. It should be noted that the movement path of the puncture needle 14 can be manually controlled; or the movement path can be generated in real time by acquiring the user's blood vessel position and then using an algorithm or preset model.

[0069] Optionally, it also includes an ultrasound module 70, which includes an ultrasound mount and an ultrasound probe.

[0070] Specifically, the ultrasound probe can be a high-frequency linear array ultrasound probe. Before puncture, the ultrasound probe, supported by the ultrasound fixation base, is positioned above the blood vessel to be punctured. The probe emits high-frequency ultrasound waves into the human tissue. When the ultrasound waves encounter tissues of different densities (such as blood vessel walls, blood, etc.), they are reflected and scattered. The reflected ultrasound waves are received by the probe and converted into electrical signals. These electrical signals are amplified and filtered by the circuit board inside the ultrasound fixation base before being transmitted to the central processing unit of the device. Based on the received signals, the central processing unit uses specialized ultrasound imaging algorithms to generate two-dimensional or three-dimensional images of the blood vessel, thereby obtaining information such as the location, depth, and diameter of the blood vessel. The ultrasound module 70 can provide real-time and accurate information about the internal structure of the blood vessel, especially for the detection of deep blood vessels, which has significant advantages. It can clearly display the course and branching of the blood vessel, as well as the presence of lesions such as plaques, providing accurate positioning for subsequent puncture operations and greatly improving the success rate and safety of blood collection.

[0071] Optionally, it also includes a binocular infrared module 80, which includes a binocular infrared mount, a binocular infrared camera, and a binocular infrared fill light.

[0072] Specifically, the binocular infrared camera uses a high-resolution infrared sensor to capture infrared radiation information from the surface of human skin. The two lenses of the camera maintain a certain baseline distance, and through the principle of stereo vision, they can acquire the three-dimensional coordinate information of blood vessels in space. The camera has automatic focus and exposure adjustment functions, and can automatically adjust shooting parameters according to different ambient light and human skin color to obtain clear and accurate images. The binocular infrared supplementary lights are simultaneously turned on, emitting infrared light onto the human skin. The two infrared cameras simultaneously capture infrared images of the skin surface and transmit the image data to the device's central processing unit. The central processing unit uses a stereo matching algorithm to match corresponding points in the two images, calculates the coordinates of each point on the blood vessel in three-dimensional space, thereby constructing a three-dimensional model of the blood vessel and obtaining information such as its location, direction, and thickness. The ultrasound module 70 and the binocular infrared module 80 complement and work together to more accurately control the position and angle of the puncture needle 14.

[0073] The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A vascular puncture device, characterized in that, include: Clamping assembly for clamping the puncture needle; A lateral drive assembly includes a guide rod, and the clamping assembly is connected to the guide rod to enable the clamping assembly to move along the axial extension direction of the guide rod; A rotary drive assembly includes an arc-shaped guide rail connected to a transverse drive assembly, the transverse drive assembly being movable along the extension direction of the arc-shaped guide rail to make the angle between the extension direction of the guide rod and the vertical direction adjustable; A lifting drive assembly includes a vertical guide rail, and the rotary drive assembly is configured to be connected to the vertical guide rail and movable along its extension direction; The clamping assembly includes a carrier and a clamping member, the carrier having a placement groove for placing a puncture needle, and the clamping member having a clamping groove; The clamping member is also connected to a power assembly, which can selectively drive the clamping groove to move in a direction close to the placement groove so that the clamping groove cooperates with the placement groove to clamp the puncture needle; or drive the clamping groove to move in a direction away from the placement groove so that the puncture needle can be placed into or removed from the placement groove. The clamping member is connected to a positioning block so that when the clamping groove moves away from the placement groove, the positioning block can form a limiting structure with the bearing member.

2. The vascular puncture device as described in claim 1, characterized in that, The carrier is provided with a keypad that is communicatively connected to the power component. The carrier is also provided with a switch button that can contact the physical buttons on the keypad to send control signals to the power component.

3. The vascular puncture device as described in claim 1, characterized in that, The placement groove includes a guide groove and a limiting groove that are interconnected. The guide groove extends along a first direction and is used to accommodate the cylindrical part of the puncture needle. The limiting groove extends along a second direction and is used to accommodate the limiting part of the puncture needle that protrudes from the side wall of the cylindrical part. The clamping member has a clamping surface, and the clamping groove is disposed on the clamping surface. The clamping groove is used to cooperate with the guide groove to clamp the cylindrical part of the puncture needle, and the clamping surface is used to cooperate with the limiting groove to clamp the limiting part of the puncture needle.

4. The vascular puncture device as described in claim 1, characterized in that, The clamping member includes a lever arm and a clamping block, a first end of the lever arm is connected to the clamping block, and the clamping groove is disposed on the clamping block; The power assembly includes a drive shaft connected to a second end of the lever arm, such that a first end of the lever arm can rotate about the axis of the drive shaft. The power assembly further includes a drive motor, a drive wheel, a transmission wheel, and a driven wheel; the drive motor is mounted on the support member, the drive wheel is sleeved on the output shaft of the drive motor, the driven wheel is sleeved on the drive shaft, and the drive wheel and the driven wheel are connected by transmission through at least one transmission wheel.

5. The vascular puncture device as described in claim 1, characterized in that, The lateral drive assembly includes a first support frame, an arc-shaped guide rail connected to the first support frame, a guide rod that is a transmission screw, the guide rod being rotatably mounted on the first support frame, a clamping assembly having a connector, the connector having a screw nut for cooperating with the guide rod, and a first power source for driving the guide rod to rotate on the first support frame.

6. The vascular puncture device as described in claim 1, characterized in that, The rotary drive assembly includes a second support frame, an arc-shaped rack is provided on the outer wall of the arc-shaped guide rail, a rotary motor is provided on the second support frame, and a rotary gear that meshes with the arc-shaped rack is sleeved on the output shaft of the rotary motor.

7. The vascular puncture device as described in claim 6, characterized in that, The second support frame is also provided with at least one guide unit, the guide unit including guide wheels located on the upper and lower sides of the arc-shaped guide rail respectively, and a guide space for accommodating the arc-shaped guide rail is formed between the two guide wheels; both guide wheels have guide grooves; the outer wall of the arc-shaped guide rail is provided with guide protrusions along its extension direction, the guide protrusions being used to cooperate with the guide grooves.

8. The vascular puncture device as described in claim 6, characterized in that, The second support frame is also equipped with a sensor, and the arc-shaped guide rail is equipped with a light-blocking plate for cooperating with the sensor. The sensor is electrically connected to the rotating motor so that the operating condition of the rotating motor can be adjusted through the sensor.

9. The vascular puncture device as described in claim 6, characterized in that, The second support frame is also provided with a slide for cooperating with the vertical guide rail. The side wall of the vertical guide rail is provided with a linear rack. The second support frame is provided with a servo motor. The output shaft of the servo motor is fitted with a lifting gear that meshes with the linear rack.

10. The vascular puncture device as described in claim 1, characterized in that, The lifting drive assembly also includes a connecting base, to which a robotic arm is connected.

Images