An ultrasonic imaging puncture needle structure and processing equipment

Abstract

The present invention discloses an ultrasonic imaging puncture needle structure and a processing device, which relates to the medical field. In the present invention, reflection lines are provided on the surfaces of the needle tube and the needle tip of the puncture needle, and the ultrasonic waves can be reflected by the reflection lines, which is convenient for observing the dynamic movement of the needle tube of the puncture needle, especially the needle tip, in real time through an ultrasonic device during nerve block, so as to ensure that the needle tip accurately reaches the target nerve, thereby improving the blocking success rate; moreover, the reflection line structure is engraved on the surface of the puncture needle by a processing device, without stamping through a stamping die, thereby reducing the stress on the puncture needle during the processing of the reflection lines, preventing the puncture needle from cracking due to excessive stress, and further preventing liquid leakage after injecting local anesthetic during nerve block, ensuring the blocking effect; in addition, when engraving the reflection lines on the surface of the puncture needle by the processing device, the puncture needle is fixedly installed by means of internal support, which can improve the installation stability of the puncture needle and prevent the slender tubular puncture needle from deforming during the rotary processing.

Description

Technical Field

[0001] The present invention belongs to the medical field, and in particular relates to an ultrasonic imaging puncture needle structure and processing equipment. Background Art

[0002] Nerve blocks are a well-established anesthetic technique that achieves anesthesia by injecting a dose of local anesthetic near peripheral nerves and nerve endings. They are often used as part of a combined analgesic technique, often in conjunction with other analgesics and other methods to control pain. During a nerve block, a local anesthetic is injected through a needle.

[0003] During the nerve block process, in order to ensure that the puncture needle can accurately puncture the target nerve, patterns are provided on the needle tube and needle tip of the puncture needle so that the needle tube, especially the dynamic movement of the needle tip, can be observed and tracked in real time by ultrasound equipment. This is the existing ultrasound-guided puncture needle.

[0004] Chinese patent CN101933829B discloses an ultrasonic puncture needle that performs puncture while observing the puncture status through ultrasonic imaging. The needle comprises a needle body with a sharp tip formed at the front end, and a right-angle reflector disposed at a predetermined position on the needle body. The right-angle reflector comprises first to third mirror surfaces, each of which has a bottom point E. The right-angle reflector is disposed on the outer surface of the needle body and is formed in multiple rows at predetermined intervals along the circumference of the needle body. However, the three mirror surfaces of this type of ultrasonic guide needle converge at a single bottom point, which can easily cause pressure concentration on the needle tube surface, leading to puncture. This increases the scrap rate of these ultrasonic guide needles. Furthermore, the ultrasonic guide needle tube wall may be punctured during processing, resulting in leakage during clinical use. In more serious cases, the needle tube may break, increasing the probability of medical accidents.

[0005] Chinese patent CN215018577U discloses an ultrasound-guided puncture needle, comprising a needle tube, a concave reflective groove provided on the surface of the needle tube, the inner wall of the reflective groove comprising a plurality of reflective mirrors; the bottom of the reflective groove is a reflective bottom surface, and the bottoms of the reflective mirrors are connected to the edge of the reflective bottom surface. The corners of the tapered reflective groove are configured as arc-shaped structures. Although this prevents the stamping die from excessively concentrating the pressure on the needle tube at a single point when stamping the needle tube, thereby reducing the possibility of the needle tube being punctured by the stamping die, the needle tube wall of the puncture needle is relatively thin. During the stamping process, the stress applied by the stamping die to the needle tube is concentrated at the reflective groove, which can still easily cause the needle tube to be cracked and damaged by the stamping, resulting in leakage of the needle tube during clinical use and an increased probability of medical accidents. Summary of the Invention

[0006] In response to the problems in the related art, the present invention proposes an ultrasonic imaging puncture needle structure and processing equipment to overcome the above-mentioned technical problems existing in the existing related art.

[0007] To solve the above technical problems, the present invention is achieved through the following technical solutions:

[0008] The present invention relates to an ultrasonic imaging puncture needle structure, comprising a needle tube and a needle tip arranged at one end of the needle tube. The surfaces of the needle tube and the needle tip are both engraved with reflective patterns by processing equipment.

[0009] Furthermore, the reflective pattern is two spiral patterns provided on the surface of the needle tube and the needle tip, and the two spiral patterns are distributed in opposite directions and staggered.

[0010] Furthermore, the pitch of the spiral pattern gradually decreases along the needle tube toward the needle tip.

[0011] The present invention also discloses a processing device for an ultrasonic imaging puncture needle structure, comprising an engraving machine, wherein the engraving machine is equipped with a rotary drive assembly and an engraving assembly, the engraving machine is further equipped with a loading and unloading mechanism located at one end of the rotary drive assembly, and the rotary drive assembly is equipped with a locking mechanism;

[0012] When the puncture needle is engraved with reflective patterns, the needle tube is pushed and fitted onto the surface of the rotating drive assembly by the loading and unloading mechanism, and then the inner wall of the needle tube is abutted and limited by the locking mechanism so that the needle tube is locked and fixed to the surface of the rotating drive assembly. Thereafter, the needle tube is driven to rotate by the rotating drive assembly, and then the reflective patterns are engraved on the surface of the rotating needle tube by the engraving assembly.

[0013] Furthermore, the rotary drive assembly includes a fixed seat, which is fixedly mounted on the working table of the engraving machine. A rotating shaft is rotatably mounted on one end of the fixed seat, and a motor transmission-connected to the rotating shaft is fixedly mounted on the other end of the fixed seat.

[0014] Furthermore, the loading and unloading mechanism includes a cylinder and a slide rail, the slide rail is fixedly installed on the working table of the engraving machine, a sliding seat is installed on the slide rail, an end plate is fixedly installed on the top surface of the sliding seat, a positioning sleeve is rotatably installed on one end of the end plate, the cylinder is fixedly installed on one end of the slide rail, and the telescopic end of the cylinder is fixedly connected to one end of the end plate.

[0015] Furthermore, the locking mechanism includes a flexible expansion member, a through slot and a rotary joint, wherein the flexible expansion member is arranged in the inner cavity of the rotating shaft, and positioning plates are fixedly installed at both ends of the flexible expansion member, the positioning plates are fixedly connected to the inner wall of the rotating shaft, and a plurality of elastic support strips are fixedly installed between the two positioning plates;

[0016] A plurality of the elastic support bars are equidistantly distributed along the outer circumference of the flexible expansion member. A plurality of equidistantly distributed limiting abutting blocks are fixedly installed on the surface of each elastic support bar. A plurality of through grooves are provided, and the plurality of through grooves are evenly distributed and arranged on the surface of the rotating shaft, and the plurality of limiting abutting blocks are respectively slidably clamped in the plurality of through grooves;

[0017] The rotary joint is rotatably installed at one end of the rotating shaft, and the inner ring of the rotary joint is communicated with the flexible expansion member through an air duct, and the outer ring of the rotary joint is communicated with a gas source through an external conduit.

[0018] Further, the engraving assembly includes a translation linear motor fixedly installed above the workbench surface of the engraving machine. A horizontal moving seat is drivingly installed on the translation linear motor. A lifting linear motor is fixedly installed on the horizontal moving seat. A lifting moving seat is drivingly installed on the lifting linear motor. A milling cutter is installed at the bottom end of the lifting moving seat.

[0019] Further, a through hole communicated with the positioning sleeve is opened on the end plate. A top push rod coaxially arranged with the through hole is fixedly installed on the top surface of the cylinder block. A material receiving box located below the end plate is installed on the workbench surface of the engraving machine.

[0020] Further, a limiting boss abutting against the end of the syringe needle is arranged in the positioning sleeve, and an elastic sleeve located on one side of the limiting boss is fixedly installed inside the positioning sleeve.

[0021] The present invention has the following beneficial effects:

[0022] 1. In the present invention, reflection lines are arranged on the surface of the syringe needle and the tip of the puncture needle, which can reflect ultrasonic waves through the reflection lines, facilitating the real-time observation of the syringe needle of the puncture needle, especially the dynamic movement of the tip, during the nerve block process to ensure that the tip accurately reaches the target nerve, thereby improving the blocking success rate; and the reflection line structure is engraved on the surface of the puncture needle through a processing device, without stamping and processing through a stamping die, thereby reducing the stress on the puncture needle during the processing of the reflection lines, preventing the puncture needle from cracking due to excessive stress, and further preventing the leakage of local anesthetic during the nerve block process, ensuring the blocking effect.

[0023] 2. When the surface of the puncture needle is engraved with reflection lines by a processing device in the present invention, the puncture needle is sleeved on the surface of the rotary drive assembly, and then the inner wall of the needle tube is abutted and limited by a locking mechanism, so that the needle tube is locked and fixed on the surface of the rotary drive assembly. The puncture needle is fixedly installed by an internal support method, which can improve the installation stability of the puncture needle, prevent the slender tubular puncture needle from undergoing flexible deformation during the rotary processing, ensure the normal progress of the processing, and there is no need to clamp and position the puncture needle during the processing, preventing the tubular puncture needle from being squeezed and deformed during the clamping process.

[0024] 3. When the reflection lines are engraved on the puncture needle in the present invention, the needle tube is pushed and sleeved on the surface of the rotary drive assembly by a loading and unloading mechanism. When the engraving processing of the puncture needle is completed, the puncture needle is withdrawn from the surface of the rotary drive assembly by the loading and unloading mechanism. Thus, the automatic loading and unloading of the puncture needle can be realized, making the loading and unloading process of the puncture needle more convenient and fast, and improving the engraving processing efficiency of the puncture needle; moreover, after the loading and unloading mechanism completes the loading of the puncture needle, it abuts against one end of the rotary drive assembly to limit the end of the rotary drive assembly, preventing the rotary drive assembly from driving the puncture needle to deflect during the rotary operation, improving the stability of the puncture needle during rotation, and further improving the engraving processing effect of the puncture needle.

[0025] Of course, it is not necessary for any product implementing the present invention to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the invention, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the invention, and those of ordinary skill in the art can also obtain other drawings based on these drawings without creative efforts.

[0027] Figure 1 It is a three-dimensional structural schematic diagram of the ultrasonic imaging puncture needle of the present invention;

[0028] Figure 2 It is one of the three-dimensional structural schematic diagrams of the structural processing equipment of the ultrasonic imaging puncture needle of the present invention;

[0029] Figure 3 For the present invention Figure 2 The partial enlarged structural schematic diagram at A;

[0030] Figure 4 For the present invention Figure 2 The partial enlarged structural schematic diagram at B;

[0031] Figure 5 For the present invention Figure 2 The partial enlarged structural schematic diagram at C;

[0032] Figure 6 It is a three-dimensional structure schematic diagram of the processing equipment for the structure of the ultrasonic imaging puncture needle of the present invention;

[0033] Figure 7 For the present invention Figure 6 The partial enlarged structure schematic diagram at D of;

[0034] Figure 8 It is the second three-dimensional structure schematic diagram of the processing equipment for the structure of the ultrasonic imaging puncture needle of the present invention;

[0035] Figure 9 For the present invention Figure 8 The partial enlarged structure schematic diagram at E of;

[0036] Figure 10 For the present invention Figure 8 The partial enlarged structure schematic diagram at F of.

[0037] In the figure: 1, needle tube; 2, needle tip; 3, reflection lines; 4, engraving machine; 41, translational linear motor; 42, horizontal moving seat; 43, lifting linear motor; 44, lifting moving seat; 45, milling cutter; 46, motor; 47, fixed seat; 48, rotating shaft; 5, loading and unloading mechanism; 51, positioning sleeve; 52, cylinder; 53, slide rail; 54, sliding seat; 55, end plate; 56, receiving box; 57, ejector rod; 58, through hole; 59, limiting boss; 510, elastic sleeve; 6, locking mechanism; 61, flexible expansion member; 62, positioning plate; 63, elastic support bar; 64, through groove; 65, limiting abutting block; 66, air duct; 67, rotary joint; 68, external catheter. Specific embodiments

[0038] Next, the technical solutions in the embodiments of the invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the invention. Obviously, the described embodiments are only a part of the embodiments of the invention, rather than all the embodiments. Based on the embodiments of the invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the invention.

[0039] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inner", etc. indicating orientation or positional relationships are only for the convenience of describing the invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the invention.

[0040] Please refer to Figure 1As shown in the figure, the present invention is an ultrasonic imaging puncture needle structure, including a needle tube 1 and a needle tip 2 provided at one end of the needle tube 1. Reflection lines 3 are engraved on the surfaces of the needle tube 1 and the needle tip 2 through a processing device.

[0041] During the process of nerve block using the puncture needle of the present application, after the needle tip 2 and the needle tube 1 are inserted into human tissues, when the ultrasonic device tracks the inserted part of the puncture needle, the reflection lines 3 can reflect ultrasonic waves, so as to cooperate with the ultrasonic device to perform imaging tracking on the puncture needle, facilitating medical staff to observe the needle tube of the puncture needle in real time, especially the dynamic movement of the needle tip. Moreover, the reflection lines 3 are engraved on the surface of the puncture needle through a processing device, without the need for stamping processing by a stamping die, thereby reducing the stress on the puncture needle during the processing of the reflection lines 3, preventing the puncture needle from cracking due to excessive stress, and further preventing leakage of local anesthetic during the nerve block process, ensuring the blocking effect.

[0042] Please refer to Figure 1 As shown in the figure, in one embodiment, the reflection lines 3 are two spiral lines provided on the surfaces of the needle tube 1 and the needle tip 2, and the two spiral lines are distributed in a reverse and staggered manner. The spiral lines are continuously arranged for 360°, so that the reflection lines 3 are arranged on the surface of the puncture needle for 360°, enabling the puncture needle to have a good ultrasonic imaging effect regardless of which side is facing up during puncture. By setting two spiral lines with opposite spiral directions, the reflection angle and reflection effect of the spiral lines can be improved, further enhancing the ultrasonic imaging effect of the puncture needle.

[0043] Please refer to Figure 1 As shown in the figure, in one embodiment, the pitch of the spiral line gradually decreases from the needle tube 1 towards the needle tip 2. During the puncture process of the puncture needle, it is mainly necessary to track the position of the needle tip 2. Therefore, relatively dense spiral lines are provided at the very front end of the needle tube 1 and the needle tip 2, so as to improve the ultrasonic reflection effect of the spiral lines, and further enhance the ultrasonic imaging effect of the needle tip 2 part. The spiral lines provided at the rear end of the needle tube 1 have a large pitch, which can reduce the influence on the needle tube 1 during the processing of the spiral lines, prevent the needle tube 1 from being damaged or its flexibility from decreasing due to the processing of the spiral lines, and ensure that the puncture needle can perform the puncture operation normally.

[0044] Please refer to Figures 1 - 5As shown, in one embodiment, a processing device for an ultrasonic imaging puncture needle structure is also disclosed, including an engraving machine 4, on which a rotary drive component and an engraving component are installed. The engraving machine 4 is also equipped with a loading and unloading mechanism 5 located at one end of the rotary drive component, and the rotary drive component is equipped with a locking mechanism 6; when the puncture needle is engraved with a reflective pattern 3, the loading and unloading mechanism 5 is used to push the needle tube 1 onto the surface of the rotary drive component, and then the locking mechanism 6 is used to abut and limit the inner wall of the needle tube 1 so that the needle tube 1 is locked and fixed to the surface of the rotary drive component, and then the rotary drive component is used to drive the needle tube 1 to rotate, and then the engraving component is used to engrave the reflective pattern 3 on the surface of the rotating needle tube 1, and when the engraving of the puncture needle is completed, the puncture needle is removed from the surface of the rotary drive component by the loading and unloading mechanism 5, thereby realizing automatic unloading of the puncture needle;

[0045] In the present invention, when the reflective pattern 3 is engraved on the surface of the puncture needle by the processing equipment, the puncture needle is placed on the surface of the rotary drive assembly, and the inner wall of the needle tube 1 is abutted and limited by the locking mechanism 6, so that the needle tube 1 is locked and fixed to the surface of the rotary drive assembly. The puncture needle is fixedly installed by means of internal support, which can improve the stability of the puncture needle installation, prevent the slender tubular puncture needle from being flexibly deformed during the rotation processing process, ensure the normal processing of the processing, improve the processing accuracy of the reflective pattern 3, and prevent the puncture needle from being damaged by engraving due to deformation and dislocation, and there is no need to perform the puncture during the processing. The needle is clamped and positioned to prevent the tubular puncture needle from being squeezed and deformed during the clamping process; when the puncture needle is engraved with the reflective pattern 3, the loading and unloading mechanism 5 can realize automatic loading and unloading of the puncture needle, making the loading and unloading process of the puncture needle more convenient and quick, and improving the engraving efficiency of the puncture needle; and after completing the loading of the puncture needle, the loading and unloading mechanism 5 abuts against one end of the rotary drive component to limit the end of the rotary drive component, preventing the rotary drive component from driving the puncture needle to deflect when rotating, thereby improving the stability of the puncture needle during rotation, and thereby improving the engraving effect of the puncture needle.

[0046] See also Figure 2 、 Figures 5 - 7 As shown, in one embodiment, the rotary drive assembly includes a fixed base 47, which is fixedly mounted on the working table of the engraving machine 4, and a rotating shaft 48 is rotatably mounted on one end of the fixed base 47, and a motor 46 in transmission connection with the rotating shaft 48 is fixedly mounted on the other end of the fixed base 47;

[0047] Among them, the locking mechanism 6 is installed on the rotating shaft 48. When engraving and processing the puncture needle, the needle tube 1 is inserted onto the surface of the rotating shaft 48 through the loading and unloading mechanism 5, and then the locking mechanism 6 abuts against the inner side surface of the needle tube 1, so that the needle tube 1 is locked and fixed on the rotating shaft 48. At the same time, the slender needle tube 1 is internally supported by the rotating shaft 48 and the locking mechanism 6, improving the installation stability of the needle tube 1 and preventing the slender needle tube 1 from undergoing flexible deformation under the action of rotational centrifugal force when the subsequent motor 46 drives the rotating shaft 48 and the needle tube 1 to rotate synchronously, thereby improving the stability of the needle tube 1 during rotation.

[0048] Please refer to Figures 2 - 7 As shown, in one embodiment, the loading and unloading mechanism 5 includes a cylinder 52 and a slide rail 53. The slide rail 53 is fixedly installed on the workbench surface of the engraving machine 4. A sliding seat 54 is installed on the slide rail 53. A end plate 55 is fixedly installed on the top surface of the sliding seat 54. A positioning sleeve 51 is rotatably installed at one end of the end plate 55. The cylinder 52 is fixedly installed at one end of the slide rail 53, and the telescopic end of the cylinder 52 is fixedly connected to one end of the end plate 55;

[0049] When loading the puncture needle, the end of the puncture needle tube 1 opposite to the needle tip 2 is inserted into the positioning sleeve 51. Then, the cylinder 52 drives the end plate 55 and the sliding seat 54 to move along the slide rail 53 towards the rotating shaft 48, thereby driving the positioning sleeve 51 and the puncture needle to move towards the rotating shaft 48 until the front ends of the puncture needle and the positioning sleeve 51 are both sleeved on the surface of the rotating shaft 48; correspondingly, when the puncture needle needs to be removed after processing, the cylinder 52 drives the end plate 55 and the sliding seat 54 to move along the slide rail 53 in the direction away from the rotating shaft 48 to reset, thereby driving the positioning sleeve 51 and the puncture needle to gradually move to the right from the rotating shaft 48, so that the positioning sleeve 51 and the puncture needle are removed from the rotating shaft 48, completing the unloading of the puncture needle.

[0050] Please refer to Figure 2 、 Figures 4 - 9As shown, in one embodiment, the locking mechanism 6 includes a flexible expansion member 61, a through groove 64, and a rotary joint 67. The flexible expansion member 61 is disposed in the inner cavity of the rotating shaft 48. Positioning plates 62 are fixedly installed at both ends of the flexible expansion member 61. The positioning plates 62 are fixedly connected to the inner wall of the rotating shaft 48, and a plurality of elastic support bars 63 are fixedly installed between the two positioning plates 62; the plurality of elastic support bars 63 are evenly distributed along the outer circumference of the flexible expansion member 61. A plurality of equally spaced limit abutting blocks 65 are fixedly installed on the surface of each elastic support bar 63. A plurality of through grooves 64 are provided. The plurality of through grooves 64 are evenly distributed and arranged on the surface of the rotating shaft 48, and the plurality of limit abutting blocks 65 are respectively slidably clamped in the plurality of through grooves 64; the rotary joint 67 is rotatably installed at one end of the rotating shaft 48, and the inner ring of the rotary joint 67 is communicated with the flexible expansion member 61 through an air duct 66. The outer ring of the rotary joint 67 is communicated with a gas source through an external connecting duct 68;

[0051] Among them, the positioning plate 62 is used to position the flexible expansion member 61 to prevent the flexible expansion member 61 from moving in the inner cavity of the rotating shaft 48. The elastic support bar 63 cooperates with the positioning plate 62 to support and limit the limit abutting block 65, improving the stability of the installation of the limit abutting block 65 and preventing the limit abutting block 65 from sliding out of the through groove 64. The rotary joint 67 includes an outer air guide ring communicated with the external connecting duct 68 and an inner air guide ring communicated with the air duct 66. A gas connection channel is provided between the outer air guide ring and the inner air guide ring in a rotational connection manner. The inner air guide ring is fixedly installed on the rotating shaft 48, so as to realize the communication between the external connecting duct 68 and the air duct 66 inside the rotating shaft 48 through the rotary joint 67; when it is necessary to lock and fix the puncture needle sleeved on the surface of the rotating shaft 48, the gas source supplies gas to the rotary joint 67 through the external connecting duct 68. The rotary joint 67 transports the gas to the flexible expansion member 61 through the air duct 66, causing the flexible expansion member 61 to inflate and expand. During the inflation and expansion process of the flexible expansion member 61, the elastic support bar 6 is extruded and deformed outwards, and then the limit abutting block 65 on the elastic support bar 63 is abutted and moved towards the outside of the through groove 64, so that the outer end of the limit abutting block 65 extends to the outer surface of the rotating shaft 48 and abuts against the inner surface of the needle tube 1. Thus, the needle tube 1 is locked and fixed on the surface of the rotating shaft 48 through the frictional resistance between the plurality of limit abutting blocks 65 and the needle tube 1, facilitating the subsequent rotation of the rotating shaft 48 driving the needle tube 1; correspondingly, when the engraving process of the puncture needle is completed, the gas source sucks air from the flexible expansion member 61 through the external connecting duct 68, the rotary joint 67, and the air duct 66, causing the flexible expansion member 61 to contract and no longer extrude and deform the elastic support bar 63 outwards. At this time, the elastic support bar 63 moves inwards to reset, thereby driving the limit abutting block 65 to slide inwards along the through groove 64 and contract, so that the limit abutting block 65 no longer abuts against the inner side surface of the needle tube 1 to release the locking of the puncture needle;

[0052] Further, when the locking mechanism 6 works, the limiting block 65 at the rightmost end of the elastic support bar 63 abuts against the inner ring of the positioning sleeve 51, thereby locking and connecting the rotating shaft 48 and the positioning sleeve 51, so as to support and limit the end of the rotating shaft 48 through the positioning sleeve 51, improve the stability of the rotating shaft 48, and prevent the rotating shaft 48 from swinging when rotating.

[0053] Please refer to Figure 2 , Figure 6 , Figure 7 As shown in FIGS., in one embodiment, the engraving assembly includes a translation linear motor 41 fixedly installed above the workbench surface of the engraving machine 4. A horizontal moving seat 42 is drivingly installed on the translation linear motor 41. A lifting linear motor 43 is fixedly installed on the horizontal moving seat 42. A lifting moving seat 44 is drivingly installed on the lifting linear motor 43. A milling cutter 45 is installed at the bottom end of the lifting moving seat 44;

[0054] When the rotating shaft 48 drives the puncture needle to rotate, first, the lifting linear motor 43 is driven to drive the lifting moving seat 44 and the milling cutter 45 to move downward, so that the milling cutter 45 abuts against the surface of the needle tube 1 of the puncture needle. Then, the translation linear motor 41 is driven to drive the horizontal moving seat 42 to move leftward, thereby driving the lifting linear motor 43, the lifting moving seat 44 and the milling cutter 45 to move leftward, so that the milling cutter 45 moves along the needle tube 1 toward the tip 2 direction, thereby engraving and processing a reflection pattern 3 on the surfaces of the needle tube 1 and the tip 2.

[0055] Please refer to Figure 2 , Figure 3 , Figure 8 , Figure 10 As shown in FIGS., in one embodiment, a through hole 58 communicating with the positioning sleeve 51 is formed in the end plate 55. A top push rod 57 coaxially arranged with the through hole 58 is fixedly installed on the top surface of the cylinder block of the air cylinder 52. A receiving box 56 located below the end plate 55 is installed on the workbench surface of the engraving machine 4;

[0056] When the engraving and processing of the puncture needle is completed, when the air cylinder 52 drives the positioning sleeve 51 and the puncture needle to move rightward, as the positioning sleeve 51 continues to move rightward, the top push rod 57 is inserted into the inside of the positioning sleeve 51 from the through hole 58, and the puncture needle is pushed leftward from the positioning sleeve 51, so as to push the puncture needle out of the positioning sleeve 51 and drop it into the receiving box 56 below, thereby realizing the automatic unloading and recycling of the puncture needle, making the unloading and recycling process of the puncture needle more convenient and fast. After the puncture needle is unloaded, the air cylinder 52 drives the positioning sleeve 51 to move leftward by a certain distance, so that the top push rod 57 retracts to the right side of the opening of the positioning sleeve 51, which will not interfere with the new puncture needle being inserted and fixed on the positioning sleeve 51, facilitating the continuous installation and processing of the puncture needle.

[0057] Please refer to Figure 2 ,Figure 4 As shown, in one embodiment, a limiting boss 59 that abuts against the end of the needle tube 1 is provided inside the positioning sleeve 51, and an elastic sleeve 510 located on one side of the limiting boss 59 is fixedly installed inside the positioning sleeve 51;

[0058] When the needle tube 1 of the puncture needle is inserted into the positioning sleeve 51, the elastic sleeve 510 is elastically sleeved on the outer surface of the needle tube 1, improving the stability of the insertion of the needle tube 1 into the positioning sleeve 51, preventing the needle tube 1 from falling off the positioning sleeve 51. And during insertion, the end of the needle tube 1 abuts against the limiting boss 59 to limit the needle tube 1 through the limiting boss �9, making the insertion position of the needle tube 1 more accurate and preventing the needle tube 1 from being over-inserted into the positioning sleeve 51.

[0059] Specific working principle:

[0060] Insert the end of the puncture needle tube 1 opposite to the needle tip 2 into the positioning sleeve 51. Then, drive the end plate 55 and the sliding seat 54 to move along the slide rail 53 towards the direction of the rotating shaft 48 through the air cylinder 52, thereby driving the positioning sleeve 51 and the puncture needle to move towards the direction of the rotating shaft 48 until the front ends of the puncture needle and the positioning sleeve 51 are both sleeved on the surface of the rotating shaft 48;

[0061] The air source supplies gas to the rotary joint 67 through an external conduit 68. The rotary joint 67 transports the gas to the flexible expansion member 61 through an air duct 66, causing the flexible expansion member 61 to inflate and expand. During the inflation and expansion process of the flexible expansion member 61, the elastic support strip 63 is extruded and deformed outwards, and then the limiting abutting block 65 on the elastic support strip 63 is abutted and moved towards the outside of the through groove 64, so that the outer end of the limiting abutting block 65 extends to the outer surface of the rotating shaft 48 and abuts against the inner surface of the needle tube 1, thereby locking and fixing the needle tube 1 on the surface of the rotating shaft 48 through the frictional resistance between the plurality of limiting abutting blocks 65 and the needle tube 1;

[0062] Drive the rotating shaft 48 and the needle tube 1 to rotate synchronously through the motor 46. Then, drive the lifting moving seat 44 and the milling cutter 45 to move downward through the lifting linear motor 43, so that the milling cutter 45 abuts against the surface of the needle tube 1 of the puncture needle. Then, drive the horizontal moving seat 42 to move leftward through the translation linear motor 41, thereby driving the lifting linear motor 43, the lifting moving seat 44 and the milling cutter 45 to move leftward, so that the milling cutter 45 moves along the needle tube 1 towards the direction of the needle tip 2, thereby engraving and processing a reflection pattern 3 on the surfaces of the needle tube 1 and the needle tip 2;

[0063] After the engraving process of the puncture needle is completed, the air source sucks air into the flexible expansion member 61 through the external catheter 68, the rotary joint 67, and the air guide tube 66, causing the flexible expansion member 61 to contract and no longer abut the elastic support strip 63 outwardly to cause deformation. At this time, the elastic support strip 63 moves inward to reset, thereby driving the limit abutting block 65 to slide inward along the through groove 64 and contract, so that the limit abutting block 65 no longer abuts against the inner side surface of the needle tube 1, to release the locking of the puncture needle;

[0064] The cylinder 52 drives the end plate 55 and the sliding seat 54 to move and reset along the slide rail 53 in a direction away from the rotating shaft 48, thereby driving the positioning sleeve 51 and the puncture needle to gradually move to the right from the rotating shaft 48, so that the positioning sleeve 51 and the puncture needle are moved away from the rotating shaft 48. As the positioning sleeve 51 continues to move to the right, the top push rod 57 is inserted into the inside of the positioning sleeve 51 from the through hole 58, and pushes the puncture needle to move leftward from the positioning sleeve 51, so as to push the puncture needle out of the positioning sleeve 51 and drop it into the lower material receiving box 56, so as to realize the automatic unloading and recycling of the puncture needle.

[0065] In the description of this specification, the descriptions with reference to the terms "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0066] The above-disclosed preferred embodiments of the invention are only used to help illustrate the invention. The preferred embodiments do not describe all the details in detail, nor limit the invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification in order to better explain the principle and practical application of the invention, so that those skilled in the relevant technical field can well understand and utilize the invention.

Claims

1. A processing device for the structure of an ultrasound-guided puncture needle, characterized in that: The engraving machine (4) comprises a rotary drive assembly and an engraving assembly mounted on the engraving machine (4), a loading and unloading mechanism (5) located at one end of the rotary drive assembly mounted on the engraving machine (4), and a locking mechanism (6) mounted on the rotary drive assembly; When the puncture needle is engraved with the reflective pattern (3), the needle tube (1) is pushed and fitted onto the surface of the rotary drive assembly by the loading and unloading mechanism (5), and then the inner wall of the needle tube (1) is abutted and limited by the locking mechanism (6) so that the needle tube (1) is locked and fixed to the surface of the rotary drive assembly. Thereafter, the needle tube (1) is driven to rotate by the rotary drive assembly, and then the reflective pattern (3) is engraved on the surface of the rotating needle tube (1) by the engraving assembly. The rotary drive assembly includes a fixed seat (47), the fixed seat (47) is fixedly mounted on the working table of the engraving machine (4), one end of the fixed seat (47) is rotatably mounted with a rotating shaft (48), and the other end of the fixed seat (47) is fixedly mounted with a motor (46) in transmission connection with the rotating shaft (48); The locking mechanism (6) includes a flexible expansion member (61), a through slot (64) and a rotary joint (67), wherein the flexible expansion member (61) is arranged in the inner cavity of the rotating shaft (48), and positioning plates (62) are fixedly installed at both ends of the flexible expansion member (61), wherein the positioning plates (62) are fixedly connected to the inner wall of the rotating shaft (48), and a plurality of elastic support strips (63) are fixedly installed between the two positioning plates (62); The plurality of elastic support strips (63) are evenly distributed along the outer ring of the flexible expansion member (61), and the surface of each elastic support strip (63) is fixedly mounted with a plurality of evenly distributed limiting blocks (65), and the plurality of through slots (64) are evenly distributed and arranged on the surface of the rotating shaft (48), and the plurality of limiting blocks (65) are respectively slidably mounted in the plurality of through slots (64); The rotary joint (67) is rotatably mounted on one end of the rotating shaft (48), and the inner ring of the rotary joint (67) is connected to the flexible expansion member (61) via an air guide tube (66), and the outer ring of the rotary joint (67) is connected to the air source via an external conduit (68).

2. The processing equipment for the structure of an ultrasonic imaging puncture needle according to claim 1, characterized in that: The loading and unloading mechanism (5) includes a cylinder (52) and a slide rail (53), wherein the slide rail (53) is fixedly mounted on the working table of the engraving machine (4), a sliding seat (54) is mounted on the slide rail (53), an end plate (55) is fixedly mounted on the top surface of the sliding seat (54), and a positioning sleeve (51) is rotatably mounted on one end of the end plate (55), the cylinder (52) is fixedly mounted on one end of the slide rail (53), and the telescopic end of the cylinder (52) is fixedly connected to one end of the end plate (55).

3. The processing equipment for the structure of an ultrasonic imaging puncture needle according to claim 1, characterized in that: The engraving assembly includes a translation linear motor (41) fixedly installed above the workbench surface of the engraving machine (4). A horizontal moving seat (42) is drivingly installed on the translation linear motor (41). A lifting linear motor (43) is fixedly installed on the horizontal moving seat (42). A lifting moving seat (44) is drivingly installed on the lifting linear motor (43). A milling cutter (45) is installed at the bottom end of the lifting moving seat (44).

4. The processing equipment for the structure of an ultrasound imaging puncture needle according to claim 2, characterized in that: A through hole (58) communicating with the positioning sleeve (51) is formed in the end plate (55). A top push rod (57) coaxially arranged with the through hole (58) is fixedly installed on the top surface of the cylinder block of the air cylinder (52). A material receiving box (56) located below the end plate (55) is installed on the workbench surface of the engraving machine (4).

5. The processing equipment for the structure of an ultrasound imaging puncture needle according to claim 2, characterized in that: A limiting boss (59) abutting against the end of the syringe (1) is arranged in the positioning sleeve (51). An elastic sleeve (510) is fixedly installed inside the positioning sleeve (51) on one side of the limiting boss (59).

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