An automated assembly device for indwelling intravenous catheters

Abstract

This invention discloses an automated assembly device for intravenous indwelling needles, comprising a needleless positive pressure connector delivery mechanism, a connecting tube delivery mechanism, and a needle assembly mechanism. The connecting tube delivery mechanism is located between the needleless positive pressure connector delivery mechanism and the needle assembly mechanism. Glue application mechanisms are provided on both sides of the connecting tube delivery mechanism. This facilitates automated processing of intravenous indwelling needles, thereby improving processing efficiency, reducing the labor intensity of workers, and ensuring aseptic processing of the indwelling needles.

Description

Technical Field

[0001] This invention relates to the field of medical device processing equipment, and more specifically to an automated assembly device for intravenous indwelling needles. Background Technology

[0002] Currently, indwelling needles are mainly manufactured manually by staff. The staff assembles the indwelling needle tubing with the tubing seat, inserts the assembled tubing into the catheter seat, then punctures the needle tip with an isolation plug, and inserts the needle and isolation plug into the catheter seat. The needle then passes through the indwelling tubing, and the isolation plug blocks the catheter seat. The catheter seat is then connected to one end of a connecting tube, which is fitted with a water-stop clamp. The other end of the connecting tube is connected to a needleless positive pressure connector. This assembly process for indwelling needles is primarily manual. Because the indwelling needle manufacturing process involves many steps and the needle tube and tubing are relatively small, it is cumbersome for staff, resulting in low processing efficiency. Furthermore, the long hours spent monitoring these delicate parts lead to high labor intensity for the staff.

[0003] Inventing the inner cylinder

[0004] To address the shortcomings of the existing technology, this invention proposes an automated assembly device for indwelling intravenous catheters, which facilitates automated processing of indwelling intravenous catheters, thereby improving processing efficiency, reducing the labor intensity of workers, and ensuring aseptic processing of the catheters.

[0005] To achieve the above objectives, the present invention provides an automatic assembly device for intravenous indwelling needles, comprising a needleless positive pressure connector delivery mechanism, a connecting tube delivery mechanism, and a needle assembly mechanism, wherein the connecting tube delivery mechanism is located between the needleless positive pressure connector delivery mechanism and the needle assembly mechanism, and adhesive application mechanisms are provided on both sides of the connecting tube delivery mechanism.

[0006] The connecting pipe conveying mechanism includes a translation component and a first fixture. Multiple sets of first fixtures arranged side by side are installed on the translation component, and a connecting pipe passing through the water-stop clamp is placed on the first fixture.

[0007] The needleless positive pressure connector conveying mechanism includes a needleless positive pressure connector sorting component and a second fixture. The needleless positive pressure connector sorting component is a vibratory sorting machine connected to a needleless positive pressure connector linear track. The second fixture is directly connected to the needleless positive pressure connector linear track.

[0008] The needle assembly mechanism includes a catheter seat clamping fixture, a tubing seat docking assembly, an isolation plug docking assembly, and a needle docking assembly. Multiple catheter seat clamping fixtures are installed on the circulation delivery assembly. The catheter seat clamping fixtures are docked with the tubing seat docking assembly and the needle docking assembly in sequence, and the isolation plug docking assembly is docked with the needle docking assembly, thus completing the assembly of the needle part.

[0009] A first assembly clamping arm and a second assembly clamping arm are provided between the second fixture and the first fixture, and between the catheter seat clamping fixture and the first fixture. The needleless positive pressure connector and the needle are connected to the connecting tube by the clamping and docking mechanism.

[0010] Preferably, the catheter seat clamping fixture has multiple parallel catheter seat embedding slots. The catheter seat that mates with the tubing seat is embedded in the catheter seat embedding slot, and the catheter seat embedding slot is tapered towards the connecting tube delivery mechanism. A second assembly clamping arm is provided above the catheter seat clamping fixture. A swing arm is installed on the second assembly clamping arm. The angle of the second assembly clamping arm is adjusted by the swing arm. A translation seat is provided above the swing arm. The second assembly clamping arm is moved by the translation seat to mate the needle with the connecting tube.

[0011] Preferably, the hose seat docking assembly includes a hose seat sorting machine, a hose seat conveying assembly, and a hose docking module. The hose seat sorting machine is docked with a hose seat linear track. The sorted hose seats are conveyed on the hose seat linear track with their tips facing upwards. The end of the hose seat linear track is docked with the hose seat conveying assembly. The hose seat conveying assembly includes hose seat clamping blocks and positioning pins. Multiple hose seat clamping blocks are conveyed by a circulating conveying assembly. Baffles that restrict the feeding of the hose seat linear track are installed on the hose seat clamping blocks. A hose seat embedding groove is opened on the hose seat clamping block. A single hose seat on the hose seat linear track is conveyed into the hose seat embedding groove. A positioning pin is installed at the bottom of the hose seat clamping block. The positioning pin passes through the hose seat clamping block and is fitted with a spring. The spring abuts against the bottom of the hose seat clamping block. The positioning pin passes through the hose seat to complete the positioning. The hose docking module inserts the hose into the hose seat.

[0012] Preferably, a hose docking module is provided above the hose seat clamping block. The hose docking module includes a hose groove, a lifting plate, a hose placement groove, and a hose clamping arm. Hose is stacked in the hose groove. Multiple vertically arranged lifting plates are provided in the hose groove. The lifting plates can move up and down. The top of the lifting plate is a conical slope. A semi-circular hose placement groove is opened at the top of the conical slope. Each hose placement groove can hold one hose. A hose clamping arm is provided on each hose placement groove. The hose clamping arm can be raised, lowered, and swing. A pushing component is provided below the hose seat clamping block. The pushing component pushes the positioning pin upward. The root of the positioning pin is a conical block that fits against the inner wall of the hose seat.

[0013] Preferably, the catheter seat is placed inside a catheter seat sorting machine, which is connected to a catheter seat linear track. A catheter seat clamping arm is installed at the end of the catheter seat linear track. The catheter seat clamping arm places the catheter seat on the tubing seat embedding groove, and at the same time, the catheter seat is sleeved on the tubing and tubing seat. The catheter seat and tubing seat are spliced ​​by pushing upward by a pushing component. The needle protective sleeve is placed inside a protective sleeve sorting machine, which is connected to a protective sleeve linear track. The protective sleeve linear track horizontally transports the needle protective sleeve. A protective sleeve clamping arm is connected at the end of the protective sleeve linear track. The protective sleeve clamping arm clamps the protective sleeve and puts it on the front end of the catheter seat. The protective sleeve clamping arm places the catheter seat inside the catheter seat clamping fixture.

[0014] Preferably, the needle docking assembly includes a needle seat sorting machine, a needle seat linear guide rail, a needle docking module, and a needle seat clamping arm. The needle seat sorting machine is docked to the needle seat linear guide rail, and the end of the needle seat linear guide rail is docked to the needle seat clamping arm. A needle docking module is provided on one side of the needle seat linear guide rail. The needle docking module includes a needle seat placement slot, a needle slot, a needle top plate, and a needle clamping plate. The needle docking module is a flat plate with a needle seat placement slot for inserting the needle seat, a through hole for the needle top plate to pass through, and a needle holder installed at the bottom of the plate. The needle tube top plate moves up and down within the needle tube placement slot. The top of the needle tube top plate is conical, and a slot for placing one needle tube is opened at the top of the needle tube top plate. When the needle tube top plate is raised to the point where the needle tube and the needle tube seat are coaxial, two needle tube clamping plates are set at the end of the plate away from the needle tube seat placement slot. The bottom of the needle tube clamping plates slides with the plate. A telescopic cylinder is set at the tail of the needle tube clamping plate. The telescopic cylinder pushes the needle tube towards the needle tube seat. When the needle tube is pushed towards the needle tube seat, the needle tube clamping plate clamps the needle tube first. The connected needle tube is then clamped away by the needle tube seat clamping arm.

[0015] Preferably, the isolation plug docking assembly consists of an isolation plug sorter and an isolation plug linear track. The isolation plug sorter and the isolation plug linear track are docked. An isolation plug lifting platform is provided at the end of the isolation plug linear track. When the isolation plug lifting platform is lifted, it is coaxial with the guide tube seat. The needle tube seat clamping arm will move to the coaxial position of the needle tube and the isolation plug. At the same time, the needle tube seat clamping arm will push the needle tube towards the guide tube seat, thus inserting the needle tube seat and the isolation plug into the guide tube seat.

[0016] Preferably, the second fixture is equipped with a lifting platform with multiple temporary storage slots. The needleless positive pressure connector at the end of the linear track is transported into the temporary storage slots. A lifting cylinder is provided at the bottom of the lifting platform, and a baffle is provided at the bottom of the lifting platform. When the lifting platform rises, the baffle blocks the end of the linear track. A first assembly clamping arm is provided above the end of the linear track of the needleless positive pressure connector. The first assembly clamping arm is a three-jaw chuck. A docking cylinder is provided at the tail of the first assembly clamping arm. The docking cylinder is used to dock the needleless positive pressure connector with one end of the connecting pipe.

[0017] Preferably, the first fixture is equipped with two sets of opposing slot plates, each with multiple placement slots. The placement slots on the two slot plates are arranged opposite each other. An alignment plate is provided on one side of the slot plate, and a slot and a limiting plate are provided on the alignment plate. Multiple opposing slots are provided on the top of the alignment plate, and a sliding limiting plate is provided on the outermost slot. The limiting plate slides and fits against the outer wall of the slot, thus limiting the end of the connecting pipe. A translatable pipe clamping assembly is provided above the alignment plate, which clamps the connecting pipe on the alignment plate onto the first fixture.

[0018] Preferably, the alignment mechanism at the end of the connecting pipe is in two sets, and the two sets are respectively arranged opposite to the gluing mechanism and the clamping and docking mechanism; the alignment mechanism at the end of the connecting pipe includes an upper alignment mold and a lower alignment mold, and a telescopic cylinder is provided between the upper alignment mold and the lower alignment mold. The upper alignment mold and the lower alignment mold are in two sets, and each set of upper alignment mold and lower alignment mold is located on both sides of the first fixture. When the upper alignment mold and the lower alignment mold are closed, the end of the connecting pipe is flush with the upper alignment mold. The gluing mechanism extends into the end of the connecting pipe to apply glue, and then the needleless positive pressure connector and the needle are respectively docked with both ends of the connecting pipe.

[0019] Compared with the prior art, the advantages of the present invention are: it facilitates the automated processing of indwelling intravenous needles, thereby improving processing efficiency, reducing the labor intensity of workers, and ensuring the aseptic processing of indwelling needles. Attached Figure Description

[0020] Figure 1 This is a top view of the present invention.

[0021] Figure 2 This is a schematic diagram showing the docking of the first fixture, the second fixture, and the catheter seat clamping fixture of the present invention.

[0022] Figure 3 This is a schematic diagram of the hose seat docking assembly of the present invention.

[0023] Figure 4 This is a schematic diagram of the hose docking module of the present invention.

[0024] Figure 5 This is a schematic diagram of the hose groove and lifting plate of the present invention.

[0025] Figure 6 This is a schematic diagram of the linear track of the conduit seat and the embedding groove of the hose seat according to the present invention.

[0026] Figure 7 This is a schematic diagram showing three positions during the processing of the protective sleeve clamping arm of the present invention.

[0027] Figure 8 This is a schematic diagram of the protective sleeve clamp arm of the present invention.

[0028] Figure 9 This is a schematic diagram of the catheter seat clamping fixture, the isolation plug linear track, and the needle tube docking module of the present invention.

[0029] Figure 10 This is a schematic diagram of the needle holder clamp arm of the present invention.

[0030] Figure 11 This is a schematic diagram of the needle docking module of the present invention and a schematic diagram of the needle docking module removing the needle clamping plate.

[0031] Figure 12 This is a schematic diagram of the second assembly clamping arm of the present invention.

[0032] Figure 13 These are two schematic diagrams of the alignment mechanism at the end of the connecting pipe according to the present invention.

[0033] Figure 14 This is a schematic diagram of the alignment plate and the first fixture of the present invention.

[0034] Among them, 1. Needleless positive pressure connector conveying mechanism, 2. Needleless positive pressure connector sorting assembly, 4. Needleless positive pressure connector linear track, 5. Second fixture, 6. Lifting platform, 7. Temporary storage tank, 8. Baffle, 9. First assembly clamping arm, 10. Docking cylinder, 11. Connecting pipe conveying mechanism, 12. Translation assembly, 13. First fixture, 14. Slot plate, 15. Placement slot, 16. Alignment plate, 17. Slot, 18. Limiting plate, 19. Tube clamping assembly, 20. Needle assembly mechanism, 21. Guide tube seat clamping fixture, 22. Guide tube seat embedding slot, 23. Second assembly clamping arm, 24. Swinging arm, 25. Translation seat, 27. Hose seat docking assembly, 28. Hose seat sorting machine, 29. Hose seat linear track, 30. Hose seat conveying assembly, 31. Baffle, 32. Hose seat embedding slot, 33. Hose seat clamping block, 34. Positioning pin, 35. Soft Pipe docking module, 36. Hose groove, 37. Lifting plate, 38. Hose placement groove, 39. Hose clamp arm, 40. Pushing assembly, 41. Conical block, 42. Cone seat sorter, 43. Cone seat linear track, 44. Cone seat clamp arm, 45. Protective sleeve sorter, 46. Protective sleeve linear track, 47. Protective sleeve clamp arm, 49. Isolation plug docking assembly, 50. Isolation plug sorter, 51. Isolation plug linear track 52. Isolation plug lifting platform; 53. Needle tube docking assembly; 54. Needle tube seat sorting machine; 55. Needle tube seat linear guide; 56. Needle tube docking module; 57. Needle tube seat placement slot; 58. Needle tube slot; 59. Needle tube top plate; 60. Needle tube clamping plate; 61. Needle tube seat clamping arm; 63. Glue application mechanism; 64. Clamping docking mechanism; 65. Connecting tube end alignment mechanism; 66. Alignment upper mold; 67. Alignment lower mold. Detailed Implementation

[0035] The invention will now be further described with reference to the accompanying drawings.

[0036] like Figure 1-14 The aforementioned automated assembly equipment for intravenous indwelling needles includes a needleless positive pressure connector delivery mechanism 1, a connecting tube delivery mechanism 11, and a needle assembly mechanism 20. The connecting tube delivery mechanism 11 is located between the needleless positive pressure connector delivery mechanism 1 and the needle assembly mechanism 20. All three mechanisms are mounted on a table. Glue application mechanisms 63 are provided on both sides of the connecting tube delivery mechanism 11. Each glue application mechanism 63 includes a glue application swing plate, a glue application rod, a rotating module, and a glue application displacement assembly. The glue application rod is mounted on the glue application swing plate and is connected to the upper... The glue-applying swing plate is rotatably connected. A gear is installed at one end of each glue-applying rod. A rotating module is set above the glue-applying swing plate. The rotating module is a rack driven by a cylinder. The rack meshes with a single gear and multiple gears mesh with each other. The bottom of the glue-applying swing plate is hinged to the glue-applying displacement component. A swing cylinder is set between the glue-applying swing plate and the glue-applying displacement component. The swing of the glue-applying swing plate is achieved by the extension and retraction of the swing cylinder. A first glue box is set below the glue-applying swing plate. By rotating the glue-applying swing plate, one end of the glue-applying rod is inserted into the first glue box, thus achieving glue application to the inner walls of both ends of the connecting pipe.

[0037] The connecting tube conveying mechanism 11 includes a translation component 12 and a first fixture 13. Multiple sets of first fixtures 13 arranged side by side are installed on the translation component 12. The translation component 12 is a chain driven by a sprocket. The sprocket is driven by a stepper motor. The bottom of the multiple first fixtures 13 is fixed to the chain on the translation component 12. A connecting tube passing through a water-stop clamp is placed on the first fixture 13. The translation component 12 conveys the connecting tube to the gluing mechanism 63 for gluing. At the same time, both ends of the connecting tube are connected to the needleless positive pressure connector conveying mechanism 1 and the needle assembly mechanism 20, thus completing the connection of the needleless positive pressure connector, the needle and the connecting tube.

[0038] The needleless positive pressure connector conveying mechanism 1 includes a needleless positive pressure connector sorting component 2 and a second fixture 5. The needleless positive pressure connector sorting component 2 is a needleless positive pressure connector linear track 4 connected to the outlet of the vibratory sorting machine. The needleless positive pressure connector is conveyed through the needleless positive pressure connector linear track 4. The second fixture 5 is directly connected to the needleless positive pressure connector linear track 4. The docking end of the needleless positive pressure connector faces the connecting pipe, which facilitates the docking of the needleless positive pressure connector with the connecting pipe.

[0039] The needle assembly mechanism 20 includes a catheter seat clamping fixture 21, a tubing seat docking assembly 27, an isolation plug docking assembly 49, and a needle docking assembly 53. Multiple catheter seat clamping fixtures 21 are mounted on a circulating conveying assembly (the circulating conveying assembly is a chain driven by a sprocket, which is driven by a stepper motor). The catheter seat clamping fixture 21 docks with the tubing seat docking assembly 27 and the needle docking assembly 53 in sequence. The tubing is docked with the tubing seat through the tubing seat docking assembly 27. Then, the catheter seat completes the docking of the tubing seat and the catheter seat at the tubing seat docking assembly 27. The docked catheter seat is clamped by the catheter seat clamping fixture 21 for clamping and conveying. The isolation plug docking assembly 49 docks with the needle docking assembly 53. The catheter seat, isolation plug, and needle are coaxial through the catheter seat clamping fixture 21. Then, the needle moves towards the catheter seat, passes through the tubing seat, and extends into the tubing. The needle pushes the isolation plug into the catheter seat to seal one end, thus completing the assembly of the needle part.

[0040] A clamping and docking mechanism 64 is provided between the second fixture 5 and the first fixture 13, and between the catheter seat clamping fixture 21 and the first fixture 13. The clamping and docking mechanism 64 consists of the first assembly clamping arm 9 and the second assembly clamping arm 23. The first assembly clamping arm 9 clamps the needleless positive pressure connector on the second fixture 5 and docks it with one end of the connecting tube. The second assembly clamping arm 23 docks the catheter seat on the catheter seat clamping fixture 21 with the other end of the connecting tube. By using the clamping and docking mechanism 64, the needleless positive pressure connector and the needle are docked with the connecting tube, thus achieving automatic processing.

[0041] Multiple parallel conduit seat embedding slots 22 are formed on the conduit seat clamping fixture 21. The conduit seat, which mates with the hose seat, is embedded into the conduit seat embedding slot 22. The conduit seat embedding slot 22 is tapered, facing the connecting pipe conveying mechanism 11, and the tail of the conduit seat protrudes from the conduit seat embedding slot 22. A second assembly clamping arm 23 is provided above the conduit seat clamping fixture 21. The second assembly clamping arm 23 clamps the tail of the conduit seat. The second assembly clamping arm 23 consists of multiple finger cylinders mounted side-by-side on a swing plate (the finger cylinders are fixed to the swing plate with bolts). A swing arm 24 is mounted on the second assembly clamping arm 23 (the swing arm 24 is rotatably connected to the swing plate, and a stepper motor is mounted on the swing arm 24 by bolts. The output shaft of the stepper motor is driven by the swing plate through a gear system). The direction of the swing plate is adjusted by the swing arm 24, and the angle of the second assembly clamping arm 23 is adjusted by the swing arm 24. A translation seat 25 is set above the swing arm 24, and a lifting cylinder is set between the swing arm 24 and the translation seat 25. The swing arm 24 is raised and lowered by the lifting cylinder, and the second assembly clamping arm 23 is aligned with the connecting tube by the translation seat 25. When the guide tube seat moves below the second assembly clamping arm 23, the swing arm 24 descends, the second assembly clamping arm 23 clamps the tail of the guide tube seat, and then the swing arm 24 rises, the guide tube seat moves away from the guide tube seat insertion groove 22, the swing plate rotates, and the docking part of the guide tube seat is rotated to a horizontal position. The guide tube seat drives the docking part to be coaxial with the connecting tube, and then the translation seat 25 moves towards the connecting tube, so that the guide tube seat is aligned with the connecting tube.

[0042] The hose seat docking assembly 27 includes a hose seat sorting machine 28, a hose seat conveying assembly 30, and a hose docking module 35. The hose seat sorting machine 28 is a hose vibration sorting machine. A hose seat linear track 29 is connected to the outlet of the hose vibration sorting machine. The sorted hose seats, with their tips facing upwards, are conveyed on the hose seat linear track 29. The end of the hose seat linear track 29 is connected to the hose seat conveying assembly 30. The hose seat conveying assembly 30 includes hose seat clamping blocks 33 and positioning pins 34. Multiple hose seat clamping blocks 33 are conveyed by a circulating conveying assembly (the circulating conveying assembly is a chain driven by a sprocket, which is driven by a stepper motor). A baffle 31 is installed on the hose seat clamping blocks 33 by bolts to restrict the feeding of the hose seat linear track 29. When the hose seat clamping block 33 is misaligned with the hose seat linear track 29, the baffle 31 blocks the end of the hose seat linear track 29. When the hose seat linear track 29 is aligned with the hose seat clamping block 33, the hose seat on the hose seat linear track 29 is transported to the hose seat clamping block 33. The hose seat clamping block 33 has a hose seat embedding groove 32. When the hose seat embedding groove 32 is connected with the hose seat linear track 29, the single hose seat on the hose seat linear track 29 is transported into the hose seat embedding groove 32. A positioning pin 34 that can be raised and lowered is installed at the bottom of the hose seat clamping block 33. The positioning pin 34 passes through the hose seat clamping block 33. A spring is sleeved on the positioning pin 34. The spring moves the positioning pin 34 downward, so that the top of the positioning pin 34 exits the hose seat embedding groove 32. The spring abuts against the bottom of the hose seat clamping block 33. The positioning pin 34 passes through the hose seat to complete the positioning. The hose docking module 35 inserts the hose into the hose seat. When the hose seat is transported into the hose seat embedding groove 32, the positioning pin 34 rises upward and passes through the hose seat.

[0043] A hose docking module 35 is provided above the hose clamping block 33. The hose docking module 35 includes a hose groove 36, a lifting plate 37, a hose placement groove 38, and a hose clamping arm 39. The hose groove 36 is installed on the platform on one side of the hose clamping block 33. Hose is stacked in the hose groove 36. Multiple vertically arranged lifting plates 37 are embedded in the hose groove 36. The bottom of the lifting plate 37 passes through the bottom of the hose groove 36. A cylinder is fixed below the lifting plate 37 by welding. The lifting plate 37 is raised and lowered by the cylinder. The top of the lifting plate 37 is a conical triangular slope. A semi-circular hose placement groove 38 is opened at the top of the conical slope. Each One hose can be placed in the hose placement slot 38. When the lifting plate 37 descends, it submerges into the hose, causing the hose to roll into the hose placement slot 38. The lifting plate 37 then rises upwards, thus lifting the single hose. Each hose placement slot 38 is equipped with a hose clamping arm 39, which grips the hose within the slot. The hose clamping arm 39 can be raised, lowered, and swung (the hose clamping arm 39 is also a finger cylinder; multiple finger cylinders are fixed side-by-side. A lifting cylinder is positioned above the hose clamping arm 39, its cylinder body fixed to a vertically mounted column on the platform. The piston rod of the lifting cylinder is connected to the hose clamping arm 39 for rotation). Next, a stepper motor is installed on the piston rod of the lifting cylinder by bolts. The output shaft of the stepper motor drives the hose clamp arm 39, thus achieving a 90° rotation of the hose clamp arm 39. A push assembly 40 is set below the hose seat clamping block 33. The push assembly 40 consists of a cylinder and a push plate. The push plate is fixed on the piston rod of the cylinder. The cylinder body is installed on the table by bolts. The push plate is located below the positioning pin 34. The rising of the push plate pushes the positioning pin 34 upward. The push assembly 40 pushes the positioning pin 34 upward. The root of the positioning pin 34 is a conical block 41 that fits against the inner wall of the hose seat. The conical block 41 pushes the hose seat upward. During operation, the hose seat clamping block 33 moves to the hose groove 36, and the lifting plate 37 is lifted upward. This causes the hose in the hose placement groove 38 of the lifting plate 37 to rise, and the hose clamping arm 39 swings downward to clamp the hose. Then the hose clamping arm 39 rises, and the hose separates from the lifting plate 37. Then the hose clamping arm 39 swings upward, and the hose is directly above the positioning pin 34. Then the hose clamping arm 39 descends, and the hose is placed on the positioning pin 34. Then the positioning pin 34 moves upward, and the conical block 41 pushes the positioning pin 34 upward. Since the hose is clamped by the hose clamping arm 39 and cannot rise, the bottom of the hose is placed on the hose seat, the hose clamping arm 39 is released, and the positioning pin 34 descends.

[0044] The guide tube seat is placed inside the guide tube seat sorting machine 42 (which is also a vibrating sorting machine). The guide tube seat sorting machine 42 is connected to a guide tube seat linear track 43. The guide tube seat is vertically conveyed within the guide tube seat linear track 43. A guide tube seat clamping arm 44 is installed at the end of the guide tube seat linear track 43. The guide tube seat clamping arm 44 places the guide tube seat on the hose seat embedding groove 32. The guide tube seat clamping arm 44 is also a finger cylinder. A rotary motor is installed on the table, and a rotating rod is fixed to the output shaft of the rotary motor. The rotating rod is fixed to the guide tube seat clamping arm 44 by bolts. Thus, the guide tube seat clamping arm 44 grips the guide tube seat and moves it above the hose. Then, a positioning pin... 34 continues to lift upwards, so that the hose seat is lifted upwards and inserted into the catheter seat and pressed tightly. The catheter seat is fitted onto the hose and the hose seat. The push assembly 40 pushes upwards to complete the splicing of the catheter seat and the hose seat. The catheter seat clamping arm 44 is released, the positioning pin 34 descends, and the catheter seat follows the positioning pin 34 to descend. Since the catheter seat is larger than the hose seat, the bottom of the catheter seat contacts the top of the hose seat clamping block 33. The needle protective sleeve is placed in the protective sleeve sorting machine 45. The protective sleeve sorting machine 45 is connected to the protective sleeve linear track 46. The protective sleeve linear track 46 horizontally transports the needle protective sleeve. At the end of the protective sleeve linear track 46, the protective sleeve clamping arm 47 is connected. The protective sleeve clamping arm 47 places the catheter seat in the tube seat clamping fixture.

[0045] The needle socket docking assembly includes a needle socket sorter 54, a needle socket linear guide rail 55, a needle docking module 56, and a needle socket clamping arm 61. The needle socket sorter 54 (which is a vibrating sorter) is docked to the needle socket linear guide rail 55, and the end of the needle socket linear guide rail 55 is docked to the needle socket clamping arm 61. The needle docking module 56 is located on one side of the needle socket linear guide rail 55 and includes a needle socket placement slot 57 and a needle slot 5. 8. The needle tube top plate 59 and needle tube clamping plate 60, and the needle tube docking module 56 are flat plates. The flat plates have needle tube holder placement slots 57 for inserting needle tube seats, and through holes for the needle tube top plate 59 to pass through. A needle tube placement slot is installed on the bottom surface of the flat plate using bolts. A cylinder is installed at the bottom of the needle tube top plate 59 using bolts, which raises and lowers the needle tube top plate 59 within the needle tube placement slot. The part is conical, and a groove for placing a needle is opened at the top of the needle tube top plate 59. When the needle tube top plate 59 is raised to the point where the needle tube and the needle tube seat are coaxial, two needle tube clamping plates 60 are set at the end of the plate away from the needle tube seat placement groove 57. The bottom of the needle tube clamping plates 60 slides in fit with the plate (a slider is fixed at the bottom of the needle tube clamping plate 60, and a groove is opened on the plate for the slider to be inserted into. The middle section of the groove is an inclined groove, that is, the needle tube clamping plates 60 first close and clamp the needle tube, then... The rear needle clamping plate 60 pushes the needle towards the needle holder. A spring is installed between the slider and the groove, which slides the slider to the left. A telescopic cylinder is installed on the flat plate at the tail of the needle clamping plate 60. The piston rod of the telescopic cylinder is pressed against the needle clamping plate 60. The telescopic cylinder pushes the needle towards the needle holder. When the needle is pushed towards the needle holder, the needle clamping plate 60 clamps the needle first. The needle after docking is clamped away by the needle holder clamping arm 61.

[0046] The isolation plug docking assembly 49 connects the isolation plug sorting machine 50 and the isolation plug linear track 51. The isolation plug sorting machine 50 (which is a vibrating sorting machine) docks with the isolation plug linear track 51. An isolation plug lifting platform 52 is installed at the end of the isolation plug linear track 51. A cylinder is installed between the bottom of the isolation plug lifting platform 52 and the isolation plug linear track 51, and the lifting of the isolation plug lifting platform 52 is achieved by the cylinder. The top of the isolation plug lifting platform 52 is a semi-circular arc groove (to avoid...). The isolation plug detaches from the isolation plug lifting platform 52. A limiting piece is fixed on the side of the isolation plug lifting platform 52 away from the isolation plug linear track 51. The limiting piece has a groove for the needle tube to pass through and move up and down. The limiting piece is a U-shaped block. The isolation plug is placed on the isolation plug lifting platform 52. When the isolation plug lifting platform 52 is lifted, it is coaxial with the catheter seat. The needle seat clamping arm 61 will move to make the needle tube coaxial with the isolation plug. At the same time, the needle seat clamping arm 61 pushes the needle tube towards the catheter seat, thus inserting the needle seat and the isolation plug into the catheter seat.

[0047] The second fixture 5 is equipped with a lifting platform 6, which has multiple temporary storage slots 7. The needleless positive pressure connector at the end of the linear track 4 is fed into the temporary storage slots 7. A lifting cylinder is fixed to the bottom of the lifting platform 6 by bolts, which is used to raise and lower the lifting platform 6. A baffle 8 is fixed to the left side of the bottom of the lifting platform 6 by bolts. When the lifting platform 6 rises, the baffle 8 blocks the end of the linear track. A first assembly clamping arm 9 is set above the end of the linear track 4 of the needleless positive pressure connector. The first assembly clamping arm 9 is a three-jaw chuck. A docking cylinder 10 is fixed between the left side of the first assembly clamping arm 9 and the table surface by bolts. The docking cylinder 10 is used to transport the first assembly clamping arm 9 to the right, and the docking cylinder 10 is used to dock one end of the needleless positive pressure connector with the connecting tube. The three-jaw chuck clamps the tail of the needleless positive pressure connector. A cylinder is installed between the first assembly clamping arm 9 and the table surface by bolts. The cylinder is used to move the first assembly clamping arm 9 horizontally, thus docking the needleless positive pressure connector with the connecting tube.

[0048] Two sets of opposing slotted plates 14 are bolted to the top of the first fixture 13. Each slotted plate 14 has multiple placement slots 15, which are opposite to each other. The two ends of the connecting pipe are secured within the placement slots 15. An alignment plate 16 is provided on the right side of the slotted plate 14. The alignment plate 16 has slots 17 and a limiting plate 18. Multiple opposing slots 17 are bolted to the top of the alignment plate 16. A sliding limiting plate 18 is fixed to the outermost slot 17 by a cylinder. By sliding and fitting against the outer wall of the slot 17, the limiting plate 18 moves left and right by a cylinder, thus limiting the end of the connecting pipe. Above the alignment plate 16, there is a pipe clamping assembly 19 that can move horizontally. The pipe clamping assembly 19 consists of multiple finger cylinders arranged side by side. The top of the pipe clamping assembly 19 is fixed with a lifting cylinder by welding. The lifting cylinder is fixed with a horizontally moving cylinder by bolts to the table. The pipe clamping assembly 19 clamps the connecting pipe on the alignment plate 16 onto the first fixture 13. The alignment plate 16 is used to align the pipes and ensure the position of the placement slot 15 and the connecting pipe.

[0049] The connecting pipe end alignment mechanism 65 consists of two sets, each set being opposite to the gluing mechanism 63 and the clamping and docking mechanism 64, respectively. The connecting pipe end alignment mechanism 65 includes an upper alignment mold 66 and a lower alignment mold 67. A telescopic cylinder is provided between the upper alignment mold 66 and the lower alignment mold 67. The upper alignment mold 66 and the lower alignment mold 67 are in two sets, with each set located on the left and right sides of the first fixture 13. Serrated grooves are provided on the opposing surfaces of the upper alignment mold 66 and the lower alignment mold 67. A groove that fits against the outer wall of the connecting pipe is provided at the bottom of the serrated groove. Thus, by aligning the upper alignment mold 66... The lower mold 67 clamps the connecting pipe. A telescopic cylinder is fixed between the lower mold 67 and the table by bolts. A telescopic cylinder is fixed to the top of the upper mold 66 by bolts. An upwardly extending column is installed on the table by bolts. The telescopic cylinder on the upper mold 66 is installed on the column by bolts. When the upper mold 66 and the lower mold 67 are closed, the end of the connecting pipe is flush with the upper mold 66. The gluing mechanism 63 extends into the end of the connecting pipe to apply glue. Then, the needleless positive pressure connector and the needle are respectively connected to both ends of the connecting pipe.

Claims

1. An automatic assembly device for an indwelling intravenous needle, comprising a needleless positive pressure connector delivery mechanism, a connecting tube delivery mechanism, and a needle assembly mechanism, wherein the connecting tube delivery mechanism is located between the needleless positive pressure connector delivery mechanism and the needle assembly mechanism, and adhesive application mechanisms are provided on both sides of the connecting tube delivery mechanism. Its features are, The connecting pipe conveying mechanism includes a translation component and a first fixture. Multiple sets of first fixtures arranged side by side are installed on the translation component, and a connecting pipe passing through the water-stop clamp is placed on the first fixture. The needleless positive pressure connector conveying mechanism includes a needleless positive pressure connector sorting component and a second fixture. The needleless positive pressure connector sorting component is a vibratory sorting machine connected to a needleless positive pressure connector linear track. The second fixture is directly connected to the needleless positive pressure connector linear track. The needle assembly mechanism includes a catheter seat clamping fixture, a tubing seat docking assembly, an isolation plug docking assembly, and a needle docking assembly. Multiple catheter seat clamping fixtures are installed on the circulation delivery assembly. The catheter seat clamping fixtures are docked with the tubing seat docking assembly and the needle docking assembly in sequence, and the isolation plug docking assembly is docked with the needle docking assembly, thus completing the assembly of the needle part. A first assembly clamping arm and a second assembly clamping arm are provided between the second fixture and the first fixture, and between the catheter seat clamping fixture and the first fixture. The needleless positive pressure connector and the needle are connected to the connecting tube by the clamping and docking mechanism.

2. The automatic assembly device for an indwelling intravenous catheter according to claim 1, characterized in that, The catheter seat clamping fixture has multiple parallel catheter seat embedding slots. The catheter seat that mates with the tubing seat is embedded in the catheter seat embedding slot. The catheter seat embedding slot is tapered and faces the connecting tube delivery mechanism. A second assembly clamping arm is provided above the catheter seat clamping fixture. A swing arm is installed on the second assembly clamping arm. The angle of the second assembly clamping arm is adjusted by the swing arm. A translation seat is provided above the swing arm. The second assembly clamping arm is moved by the translation seat to mate the needle with the connecting tube.

3. The automatic assembly device for an indwelling intravenous catheter according to claim 2, characterized in that, The hose connector assembly includes a hose connector sorting machine, a hose connector conveying assembly, and a hose connector module. The hose connector sorting machine is connected to a hose connector linear track. The sorted hose connectors are conveyed on the hose connector linear track with their tips facing upwards. The end of the hose connector linear track is connected to the hose connector conveying assembly, which includes hose connector clamping blocks and positioning pins. Multiple hose connector clamping blocks are conveyed by a circulating conveying assembly. Baffles are installed on the hose connector clamping blocks to restrict the feeding of the hose connector linear track. A hose connector embedding groove is opened on the hose connector clamping block. A single hose connector on the hose connector linear track is conveyed into the hose connector embedding groove. A positioning pin is installed at the bottom of the hose connector clamping block. The positioning pin passes through the hose connector clamping block and is fitted with a spring. The spring abuts against the bottom of the hose connector clamping block. The positioning pin passes through the hose connector to complete the positioning. The hose connector module inserts the hose into the hose connector.

4. The automatic assembly device for an indwelling intravenous catheter according to claim 3, characterized in that, A hose docking module is provided above the hose seat clamping block. The hose docking module includes a hose groove, a lifting plate, a hose placement groove, and a hose clamping arm. Hose is stacked in the hose groove. Multiple vertically arranged lifting plates are provided in the hose groove. The lifting plates can move up and down. The top of the lifting plate is a conical slope. A semi-circular hose placement groove is opened at the top of the conical slope. Each hose placement groove can hold one hose. A hose clamping arm is provided on each hose placement groove. The hose clamping arm can be raised, lowered, and swing. A pusher assembly is provided below the hose seat clamping block. The pusher assembly pushes the positioning pin upward. The base of the positioning pin is a conical block that fits against the inner wall of the hose seat.

5. The automatic assembly device for an indwelling intravenous catheter according to claim 4, characterized in that, The catheter seat is placed inside the catheter seat sorting machine, which is connected to a catheter seat linear track. A catheter seat clamping arm is installed at the end of the catheter seat linear track. The catheter seat clamping arm places the catheter seat on the tubing seat embedding groove. At the same time, the catheter seat is fitted onto the tubing and tubing seat. The catheter seat and tubing seat are spliced ​​by pushing upward by the pushing component. The needle protective sleeve is placed inside the protective sleeve sorting machine, which is connected to a protective sleeve linear track. The protective sleeve linear track horizontally transports the needle protective sleeve. A protective sleeve clamping arm is connected at the end of the protective sleeve linear track. The protective sleeve clamping arm clamps the protective sleeve and fits it onto the front end of the catheter seat. The protective sleeve clamping arm places the catheter seat inside the catheter seat clamping fixture.

6. The automatic assembly device for an indwelling intravenous catheter according to claim 5, characterized in that, The needle docking assembly includes a needle socket sorter, a needle socket linear guide, a needle docking module, and a needle socket clamping arm. The needle socket sorter is docked to the needle socket linear guide, and the end of the linear guide is docked to the needle socket clamping arm. A needle docking module is located on one side of the linear guide. The needle docking module includes a needle socket placement slot, a needle slot, a needle top plate, and a needle clamping plate. The needle docking module is essentially a flat plate. The flat plate has a needle socket placement slot for inserting the needle socket, a through hole for the needle top plate to pass through, and a slot for placing the needle at the bottom of the flat plate. The body has a needle tube top plate that rises and falls within the needle tube placement slot. The top of the needle tube top plate is conical, and a slot for placing one needle tube is opened at the top of the needle tube top plate. When the needle tube top plate is raised to the point where the needle tube and needle tube seat are coaxial, two needle tube clamping plates are set at the end of the plate away from the needle tube seat placement slot. The bottom of the needle tube clamping plates slides with the plate. A telescopic cylinder is set at the tail of the needle tube clamping plate. The telescopic cylinder pushes the needle tube towards the needle tube seat. When the needle tube is pushed towards the needle tube seat, the needle tube clamping plate clamps the needle tube first. The connected needle tube is then clamped away by the needle tube seat clamping arm.

7. The automatic assembly device for an indwelling intravenous catheter according to claim 6, characterized in that, The isolation plug docking assembly consists of an isolation plug sorter and an isolation plug linear track. The isolation plug sorter docks with the isolation plug linear track, and an isolation plug lifting platform is set at the end of the linear track. When the isolation plug lifting platform is lifted, it is coaxial with the guide tube seat. The needle tube seat clamping arm will move to the coaxial position of the needle tube and the isolation plug. At the same time, the needle tube seat clamping arm pushes the needle tube towards the guide tube seat, thus inserting the needle tube seat and the isolation plug into the guide tube seat.

8. The automatic assembly device for an indwelling intravenous catheter according to claim 7, characterized in that, The second fixture is equipped with a lifting platform with multiple temporary storage slots. The needleless positive pressure connector at the end of the linear track is transported into the temporary storage slots. A lifting cylinder is installed at the bottom of the lifting platform, and a baffle is installed at the bottom of the lifting platform. When the lifting platform rises, the baffle blocks the end of the linear track. Above the end of the linear track of the needleless positive pressure connector, a first assembly clamping arm is installed. The first assembly clamping arm is a three-jaw chuck. A docking cylinder is installed at the tail of the first assembly clamping arm. The docking cylinder is used to dock the needleless positive pressure connector with one end of the connecting pipe.

9. The automatic assembly device for an indwelling intravenous catheter according to claim 8, characterized in that, The first fixture is equipped with two sets of opposing slotted plates, each with multiple placement slots. The placement slots on the two slotted plates are positioned opposite each other. An alignment plate is provided on one side of the slotted plate, and a slot and a limiting plate are provided on the alignment plate. Multiple opposing slots are provided on the top of the alignment plate, and a sliding limiting plate is provided on the outermost slot. The limiting plate slides and fits against the outer wall of the slot, thus limiting the end of the connecting pipe. A pipe clamping assembly that can be moved is provided above the alignment plate. The pipe clamping assembly clamps the connecting pipe on the alignment plate onto the first fixture.

10. The automatic assembly device for an indwelling intravenous catheter according to claim 1, characterized in that, The alignment mechanism at the end of the connecting pipe consists of two sets, which are respectively arranged opposite to the gluing mechanism and the clamping and docking mechanism. The alignment mechanism at the end of the connecting pipe includes an upper alignment mold and a lower alignment mold. A telescopic cylinder is provided between the upper alignment mold and the lower alignment mold. The upper alignment mold and the lower alignment mold are two sets, and each set of upper alignment mold and lower alignment mold is located on both sides of the first fixture. When the upper alignment mold and the lower alignment mold are closed, the end of the connecting pipe is flush with the upper alignment mold. The gluing mechanism extends into the end of the connecting pipe to apply glue. Then, the needleless positive pressure connector and the needle are docked with both ends of the connecting pipe respectively.

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