Blade face positioning device and medical device production line

Abstract

The present invention relates to a blade face alignment device and a medical device production line. The blade face alignment device comprises an inner needle assembly and an outer needle assembly sleeved on the outside of the inner needle assembly. The blade face alignment device comprises an external detection assembly and an external adjustment assembly. The external detection assembly is used to detect whether the blade face of the inner needle assembly and the blade face of the outer needle assembly are in an aligned state. The external adjustment assembly is used to drive the outer needle assembly to move until the blade face of the outer needle assembly is aligned with the blade face of the inner needle assembly. The beneficial effect of the present invention is that the blade face alignment device can realize automatic alignment of the blade face of the inner needle assembly and the blade face of the outer needle assembly.

Description

Technical Field

[0001] The present invention relates to medical equipment, and in particular to a blade face positioning device and a medical equipment production line. Background Art

[0002] Some medical devices include an inner needle assembly and an outer needle assembly. The outer needle assembly is fitted over the inner needle assembly. Both the inner and outer needle assemblies are equipped with cutting edges. Therefore, to meet production requirements, the cutting edges of the inner and outer needle assemblies must be as coplanar as possible. Automatically aligning the cutting edges of the inner and outer needle assemblies to improve production efficiency is a pressing issue. Summary of the Invention

[0003] In view of this, it is necessary to provide an improved blade face alignment device and a medical device production line, which can realize automatic alignment of the blade face of the inner needle assembly and the blade face of the outer needle assembly. The blade face of the inner needle assembly and the blade face of the outer needle assembly produced by the medical device production line using the blade face alignment device can be automatically aligned, and the production efficiency is high.

[0004] The present invention first provides a blade face positioning device, which includes an inner needle assembly and an outer needle assembly sleeved on the outside of the inner needle assembly. The blade face positioning device includes an external detection assembly and an external adjustment assembly. The external detection assembly is used to detect whether the blade face of the inner needle assembly and the blade face of the outer needle assembly are in an aligned state, and the external adjustment assembly is used to drive the outer needle assembly to move until the blade face of the outer needle assembly and the blade face of the inner needle assembly are aligned.

[0005] By adopting the above technical solution, the external detection component detects whether the blade surface of the outer needle assembly and the blade surface of the inner needle assembly are in an aligned state. If the blade surface of the outer needle assembly and the blade surface of the inner needle assembly are in a non-aligned state, the external adjustment component drives the outer needle assembly to move so that the blade surface of the outer needle assembly and the blade surface of the inner needle assembly are aligned. The external detection component again detects whether the blade surface of the outer needle assembly and the blade surface of the inner needle assembly are in an aligned state. If the blade surface of the outer needle assembly and the blade surface of the inner needle assembly are in an aligned state, the external adjustment component does not need to drive the outer needle assembly to move. Finally, the blade surface of the outer needle assembly and the blade surface of the inner needle assembly are automatically aligned.

[0006] In one embodiment of the present invention, the external adjustment assembly includes an external rotating member and an external translation member, the external rotating member is used to drive the blade surface of the outer needle assembly to rotate relative to the blade surface of the inner needle assembly, and the external translation member is used to drive the blade surface of the outer needle assembly to translate relative to the blade surface of the inner needle assembly.

[0007] By adopting the above technical solution, when the outer adjustment assembly drives the blade of the outer needle assembly to move relative to the blade of the inner needle assembly, it is necessary to drive the blade of the outer needle assembly to have the same orientation as the blade of the inner needle assembly, and also to drive the blade of the outer needle assembly and the blade of the inner needle assembly to be aligned in the axial direction, so as to ensure that the blade of the outer needle assembly and the blade of the inner needle assembly are aligned. Therefore, it is necessary to drive the blade of the outer needle assembly to rotate relative to the blade of the inner needle assembly by the outer rotating member, and also to drive the blade of the outer needle assembly to translate relative to the blade of the inner needle assembly by the outer translation member, so as to finally achieve the alignment of the blade of the outer needle assembly with respect to the blade of the inner needle assembly.

[0008] In one embodiment of the present invention, the minimum angle between the projections of the long axis of the blade surface of the outer needle assembly and the long axis of the blade surface of the inner needle assembly in the same vertical plane is α, the distance between the midpoint of the long axis of the blade surface of the outer needle assembly and the midpoint of the long axis of the blade surface of the inner needle assembly in the same vertical plane is d, and the external detection component detects 0≤α≤15° and 0≤d≤5mm to determine that the blade surface of the outer needle assembly and the blade surface of the inner needle assembly are in alignment.

[0009] In one embodiment of the present invention, the inner needle assembly includes an inner needle and an inner needle seat, and the blade surface positioning device also includes an internal detection assembly and an internal adjustment assembly. The internal detection assembly detects whether the blade surface of the inner needle and a specific part of the inner needle seat are in an aligned state, and the internal adjustment assembly is used to drive the blade surface of the inner needle to move to align with the specific part of the inner needle seat.

[0010] In one embodiment of the present invention, the inner adjustment assembly includes an inner rotating member, and the inner rotating member is used to drive the blade surface of the inner needle to rotate relative to a specific position of the inner needle seat.

[0011] The present invention further provides a medical device production line, comprising the above-mentioned blade face positioning device.

[0012] By adopting the above technical solution, the blade faces of the inner needle assembly and the outer needle assembly produced by the medical device production line using the blade face alignment device can be automatically aligned, and the production efficiency is high.

[0013] In one embodiment of the present invention, the inner needle assembly includes an inner needle seat and an inner needle, the outer needle assembly includes an outer needle seat and an outer needle, the medical device production line also includes an outer needle seat loading device for assembling the outer needle seat and the inner needle seat, and an outer needle loading device for assembling the outer needle and the outer needle seat, the blade surface alignment device includes an external alignment device, the external alignment device includes an external detection component and an external adjustment component, and the outer needle seat loading device, the outer needle loading device, and the external alignment device are distributed in sequence according to the process.

[0014] By adopting the above technical solution, if the outer needle seat feeding device only provides the outer needle seat without assembling the outer needle seat and the inner needle seat, and the outer needle seat and the inner needle seat are assembled after the outer needle feeding device completes the assembly of the outer needle and the outer needle seat. If the inner needle seat and the outer needle seat are to be assembled, the relative positions of the outer needle seat and the outer needle have been determined at this time, otherwise the outer needle seat and the outer needle are likely to separate while the inner needle seat and the outer needle seat are assembled. When the relative positions of the inner needle seat and the outer needle seat have been determined, the external alignment device needs to ensure that the blade surface of the inner needle and the blade surface of the outer needle are in an aligned state, which will result in the inner needle seat and the outer needle seat being unable to be assembled when the blade surface of the inner needle and the blade surface of the outer needle are in an aligned state. In other words, after the relative positions of the inner needle seat and the outer needle seat have been determined, it may interfere with the alignment of the blade surface of the inner needle and the blade surface of the outer needle. Therefore, the outer needle seat and the inner needle seat are first assembled by the outer needle seat loading device, and then the outer needle and the outer needle seat are assembled by the outer needle loading device. The external alignment device can align the blade surface of the outer needle and the blade surface of the inner needle when the relative position of the outer needle and the outer needle seat has not been completely determined, thereby realizing both the assembly of the outer needle seat and the inner needle seat and the alignment of the blade surface of the outer needle and the blade surface of the inner needle.

[0015] In one embodiment of the present invention, the medical device production line further includes an external glue dispensing device and an external curing device, the external glue dispensing device is used to apply glue to the connection between the outer needle and the outer needle seat, the external curing device is used to cure the glue at the connection between the outer needle and the outer needle seat, and the projections of the external glue dispensing device and the external alignment device in the horizontal plane overlap or the projections of the external curing device and the external alignment device in the horizontal plane overlap.

[0016] By adopting the above technical solution, the overall footprint of the external dispensing device and the external alignment device or the overall footprint of the external curing device and the external alignment device can be reduced as much as possible.

[0017] In one embodiment of the present invention, the medical device production line also includes an inner needle seat loading device for providing the inner needle seat, an inner needle loading device for assembling the inner needle and the inner needle seat, the blade surface positioning device also includes an internal alignment device, the internal alignment device includes an internal detection component and an internal adjustment component, the inner needle seat loading device, the inner needle loading device, the internal alignment device, and the outer needle seat loading device are distributed in sequence according to the process.

[0018] By adopting the above technical solution, if the outer needle holder feeding device is placed before the inner alignment device, the assembly of the outer needle holder to the inner needle holder will affect the internal detection assembly's ability to detect whether the inner needle blade and a specific portion of the inner needle holder are in alignment. Therefore, the inner alignment device needs to be placed before the inner alignment device.

[0019] In one embodiment of the present invention, the medical device production line further includes an internal glue dispensing device and an internal curing device, the internal glue dispensing device is used to apply glue to the connection between the inner needle and the inner needle seat, the internal curing device is used to cure the glue at the connection between the inner needle and the inner needle seat, and the projections of the internal glue dispensing device and the internal alignment device in the horizontal plane overlap or the projections of the internal curing device and the internal alignment device in the horizontal plane overlap.

[0020] By adopting the above technical solution, the overall footprint of the internal dispensing device and the internal alignment device or the overall footprint of the internal curing device and the internal alignment device can be reduced as much as possible.

[0021] In one embodiment of the present invention, the inner needle assembly includes an inner needle seat and an inner needle, the outer needle assembly includes an outer needle seat and an outer needle, the medical device production line also includes an inner needle seat loading device for providing the inner needle seat, an inner needle loading device for assembling the inner needle and the inner needle seat, an outer needle seat loading device for providing the outer needle seat, an outer needle loading device for assembling the outer needle and the outer needle seat, and an assembly device for assembling the outer needle seat and the inner needle seat, the blade surface alignment device includes an external alignment device, the external alignment device includes an external detection component and an external adjustment component, the inner needle seat loading device, the inner needle loading device, the assembly device and the external alignment device are distributed in sequence according to the process, and the outer needle seat loading device, the outer needle loading device, the assembly device and the external alignment device are distributed in sequence according to the process. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 Schematic diagram of the structure of the internal alignment device in an embodiment of the present invention;

[0023] Figure 2 This is a schematic structural diagram of the first external alignment device in an embodiment of the present invention;

[0024] Figure 3 This is a schematic structural diagram of the latter external alignment device in an embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of the structure of the material in the embodiment of the present invention;

[0026] Figure 5 This is a structural diagram of a medical device production line according to an embodiment of the present invention.

[0027] Reference numerals: 100, internal alignment device; 110, internal detection assembly; 120, internal adjustment assembly; 121, internal clamping member; 122, internal clamping drive member; 123, internal rotating member; 200, external alignment device; 210, external detection assembly; 220, external adjustment assembly; 221, external clamping member; 222, external clamping drive member; 223, external rotating member; 224, external translation member; 300, material ; 310, inner needle assembly; 311, inner needle; 312, inner needle seat; 320, outer needle assembly; 321, outer needle; 322, outer needle seat; 400, inner needle seat loading device; 500, inner needle loading device; 600a, inner gluing device; 600b, inner curing device; 700, outer needle seat loading device; 800, outer needle loading device; 900a, outer gluing device; 900b, outer curing device. DETAILED DESCRIPTION

[0028] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] It should be noted that when a component is referred to as being "mounted on" another component, it may be mounted directly on the other component or there may be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a central component. When a component is considered to be "fixed to" another component, it may be directly fixed to the other component or there may be a central component.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "or / and" as used herein includes any and all combinations of one or more of the associated listed items.

[0031] The embodiment of the present invention first provides Figure 1 and Figure 2 The blade face alignment device shown includes an inner alignment device 100 and an outer alignment device 200. The inner alignment device 100 includes an inner detection component 110 and an inner adjustment component 120. The outer alignment device 200 includes an outer detection component 210 and an outer adjustment component 220.

[0032] Reference Figure 4The material 300 includes an inner needle assembly 310 and an outer needle assembly 320. The inner needle assembly 310 includes an inner needle 311 and an inner needle seat 312, and the outer needle assembly 320 includes an outer needle 321 and an outer needle seat 322. The outer needle 321 is sleeved on the outside of the inner needle 311, and the outer needle seat 322 is sleeved on the outside of the inner needle seat 312. It should be noted that the outer needle seat 322 being sleeved on the outside of the inner needle seat 312 includes both the case where the inner needle seat 312 is completely sleeved on the inside of the outer needle seat 322 and the case where the inner needle seat 312 is partially sleeved on the inside of the outer needle seat 322.

[0033] Reference Figure 1 The inner detection component 110 is used to detect whether the blade surface of the inner needle 311 and the specific part of the inner needle seat 312 are in alignment. Figure 1 In the specific embodiment shown, the internal detection part adopts a CCD visual detection system. The internal adjustment component 120 is used to drive the blade surface of the inner needle 311 to move to align with a specific position of the inner needle seat 312. The internal adjustment component 120 includes an internal clamping member 121, an internal clamping drive member 122 and an internal rotating member 123. The internal clamping member 121, the internal clamping drive member 122 and the internal rotating member 123 are connected in sequence. The internal clamping member 121 is used to clamp the inner needle 311, and the internal clamping drive member 122 is used to drive the internal clamping member 121 to clamp the inner needle 311 and release the inner needle 311. The internal rotating member 123 is used to drive the internal clamping drive member 122 to rotate relative to a specific position of the inner needle seat 312, thereby driving the blade surface of the inner needle 311 to rotate relative to a specific position of the inner needle seat 312 through the internal clamping drive member 122 and the internal clamping member 121.

[0034] Reference Figure 2 The outer detection component 210 is used to detect whether the blade surface of the inner needle 311 and the blade surface of the outer needle 321 are in alignment. Figure 2In the illustrated embodiment, the external detection assembly 210 also utilizes a CCD visual inspection system. The external adjustment assembly 220 is used to drive the outer needle 321 until the blade surface of the outer needle 321 is aligned with the blade surface of the inner needle 311. The external adjustment assembly 220 includes an external clamping member 221, an external clamping drive member 222, an external rotating member 223, and an external translating member 224. The external clamping member 221, the external clamping drive member 222, the external rotating member 223, and the external translating member 224 are sequentially connected. The external clamping member 221 is used to clamp the outer needle 321, and the external clamping drive member 222 is used to drive the external clamping member 221 to clamp and release the outer needle 321. The external rotating member 223 is used to drive the external clamping drive member 222 to rotate relative to the inner needle 311, thereby driving the blade surface of the outer needle 321 to rotate relative to the blade surface of the inner needle 311 via the external clamping drive member 222 and the external clamping member 221. The outer translation member 224 is used to drive the outer rotation member 223 to translate relative to the inner needle 311, thereby driving the blade surface of the outer needle 321 to translate relative to the blade surface of the inner needle 311 via the outer rotation member 223, the outer clamping drive member 222, and the outer clamping member 221. The outer detection assembly 210 detects whether the blade surfaces of the outer needle 321 and the inner needle 311 are aligned. If the blade surfaces of the outer needle 321 and the inner needle 311 are not aligned, the outer adjustment assembly 220 drives the outer needle 321 to move so that the blade surfaces of the outer needle 321 and the inner needle 311 are aligned. The outer detection assembly 210 then again detects whether the blade surfaces of the outer needle 321 and the inner needle 311 are aligned. If the blade surfaces of the outer needle 321 and the inner needle 311 are aligned, the outer adjustment assembly 220 does not need to drive the outer needle 321 to move. Ultimately, the blade surface of the outer needle 321 and the blade surface of the inner needle 311 are automatically aligned. During the process of the outer adjustment assembly 220 driving the blade surface of the outer needle 321 to move relative to the blade surface of the inner needle 311, it is necessary to drive the blade surface of the outer needle 321 to the same orientation as the blade surface of the inner needle 311, and also to drive the blade surface of the outer needle 321 and the blade surface of the inner needle 311 to be aligned in the axial direction, in order to ensure that the blade surface of the outer needle 321 and the blade surface of the inner needle 311 are aligned. Therefore, it is necessary to not only drive the blade surface of the outer needle 321 to rotate relative to the blade surface of the inner needle 311 via the outer rotating member 223, but also to drive the blade surface of the outer needle 321 to translate relative to the blade surface of the inner needle 311 via the outer translating member 224, ultimately achieving alignment of the blade surface of the outer needle 321 with the blade surface of the inner needle 311.

[0035] The longest line connecting any two points on the blade surface of the inner needle 311 and the blade surface of the outer needle 321 is named the long axis. When the external detection component 210 detects that the minimum angle between the projections of the long axis of the blade surface of the inner needle 311 and the long axis of the blade surface of the outer needle 321 in the same vertical plane is α, then 0≤α≤15° determines that the blade surfaces of the inner needle 311 and the outer needle 321 are oriented in the same direction. When the external detection component 210 detects that the distance between the projections of the midpoint of the long axis of the blade surface of the inner needle 311 and the midpoint of the blade surface of the outer needle 321 in the same vertical plane is d, then 0≤d≤5mm determines that the blade surfaces of the inner needle 311 and the outer needle 321 are in axial alignment. Finally, when the blade surface of the inner needle 311 and the blade surface of the outer needle 321 are oriented in the same direction and the axial positions of the blade surface of the inner needle 311 and the blade surface of the outer needle 321 are in alignment, the external detection component 210 determines that the blade surface of the inner needle 311 and the blade surface of the outer needle 321 are in alignment.

[0036] Embodiments of the present invention further provide Figure 5 A medical device production line shown includes an inner needle seat loading device 400, an inner needle loading device 500, an inner glue dispensing device 600a, an inner alignment device 100 as in the above embodiment, an inner curing device 600b, an outer needle seat loading device 700, an outer needle loading device 800, an outer glue dispensing device 900a, an outer alignment device 200 as in the above embodiment, and an outer curing device 900b. The inner needle seat loading device 400 is used to provide the inner needle seat 312, the inner needle loading device 500 is used to assemble the inner needle 311 and the inner needle seat 312, the internal glue dispensing device 600a is used to apply glue to the connection between the inner needle 311 and the inner needle seat 312, the internal curing device 600b is used to cure the glue at the connection between the inner needle 311 and the inner needle seat 312, the outer needle seat loading device 700 is used to assemble the outer needle seat 322 and the inner needle seat 312, the outer needle loading device 800 is used to assemble the outer needle 321 and the outer needle seat 322, the external glue dispensing device 900a is used to apply glue to the connection between the outer needle 321 and the outer needle seat 322, and the external curing device 900b is used to cure the glue at the connection between the outer needle 321 and the outer needle seat 322. When the outer needle seat loading device 700 assembles the outer needle seat 322 and the inner needle seat 312, the outer needle seat 322 and the inner needle seat 312 are aligned. Figure 4 In the illustrated embodiment, the outer needle hub 322 and the inner needle hub 312 are aligned by means of a groove in the outer needle hub 322 and a protrusion in the inner needle hub 312. A medical device production line employing the internal and external alignment devices 100 and 200 can automatically align the blade surfaces of the inner and outer needle assemblies 310 and 320, resulting in high production efficiency.

[0037] If the outer needle seat loading device 700 only provides the outer needle seat 322 without assembling the outer needle seat 322 and the inner needle seat 312, and the outer needle seat 322 and the inner needle seat 312 are assembled after the outer needle 321 loading device has completed the assembly of the outer needle 321 and the outer needle seat 322, then the outer needle seat 322 and the inner needle seat 312 are assembled. If the inner needle seat 312 and the outer needle seat 322 are to be assembled, the relative positions of the outer needle seat 322 and the outer needle 321 have already been determined. Otherwise, the outer needle seat 322 and the outer needle 321 may be easily separated while the inner needle seat 312 and the outer needle seat 322 are assembled. After the relative positions of the inner needle hub 312 and the outer needle hub 322 have been determined, the outer alignment device 200 needs to ensure that the blade surfaces of the inner needle 311 and the outer needle 321 are aligned. This may result in the inner needle hub 312 and the outer needle hub 322 being unable to be assembled while the blade surfaces of the inner needle 311 and the outer needle 321 are aligned. In other words, after the relative positions of the inner needle hub 312 and the outer needle hub 322 have been determined, the alignment of the blade surfaces of the inner needle 311 and the outer needle 321 may be interfered with. Therefore, the outer needle seat 322 and the inner needle seat 312 are first assembled by the outer needle seat loading device 700, and then the outer needle 321 and the outer needle seat 322 are assembled by the outer needle 321 loading device. The external alignment device 200 can align the blade surface of the outer needle 321 and the blade surface of the inner needle 311 when the relative position of the outer needle 321 and the outer needle seat 322 has not been completely determined, thereby realizing both the assembly of the outer needle seat 322 and the inner needle seat 312 and the alignment of the blade surface of the outer needle 321 and the blade surface of the inner needle 311.

[0038] Reference Figure 5 The inner needle hub loading device 400, inner needle loading device 500, inner alignment device 100, outer needle hub loading device 700, outer needle loading device 800, and outer alignment device 200 are arranged in sequence according to the process. If the outer needle hub loading device 700 is placed before the inner alignment device 100, the assembly of the outer needle hub 322 to the inner needle hub 312 will affect the internal detection assembly 110's detection of whether the blade surface of the inner needle 311 and the specific part of the inner needle hub 312 are in the correct alignment state. Therefore, the inner alignment device 100 needs to be placed before the inner alignment device 100.

[0039] Reference Figure 1 The projections of the internal curing device 600b and the internal alignment device 100 in the horizontal plane overlap, while the internal glue dispensing device 600a is located between the internal needle loading device 500 and the internal alignment device 100 according to the process. The overall footprint of the internal glue dispensing device 600a and the internal alignment device 100, or the overall footprint of the internal curing device 600b and the internal alignment device 100, is minimized.

[0040] exist Figure 2 、 Figure 3 and Figure 5In the specific embodiment shown, two external alignment devices 200 are provided, while only one external curing device 900b is provided. The external curing device 900b only overlaps with the projection of the subsequent external alignment device 200 in the horizontal plane. The external glue dispensing device 900a is located between the external needle loading device 800 and the previous external alignment device 200 according to the process. At this time, the external rotating member 223 is eliminated from the subsequent external alignment device 200. The overall footprint of the external glue dispensing device 900a and the external alignment device 200 or the overall footprint of the external curing device 900b and the external alignment device 200 can be reduced as much as possible.

[0041] It is understandable that the inner alignment device 100 can be removed. Accordingly, the inner needle 311 is no longer aligned with the specific position of the inner needle seat 312.

[0042] It is understandable that the outer needle seat 322 may no longer be aligned with the inner needle seat 312 .

[0043] It can be understood that the internal curing device 600b is located between the internal alignment device 100 and the external needle holder loading device 700 according to the process, and the projections of the internal dispensing device 600a and the internal alignment device 100 on the horizontal plane overlap.

[0044] It can be understood that the external curing device 900b is located after the external alignment device 200 according to the process, and the projections of the external dispensing device 900a and the external alignment device 200 in the horizontal plane overlap.

[0045] It is understood that the assembly method of the inner needle assembly 310 and the outer needle assembly 320 can also be changed to first assemble the inner needle seat 312 and the inner needle 311 separately to form the inner needle assembly 310, and then assemble the outer needle seat 322 and the outer needle 321 separately to form the outer needle assembly 320, and then assemble the inner needle assembly 310 and the outer needle assembly 320. In this case, the medical device production line includes an inner needle seat loading device 400, an inner needle loading device 500, an inner glue dispensing device 600a, an inner curing device 600b, an outer needle seat loading device 700, an outer needle loading device 800, an outer glue dispensing device 900a, an outer curing device 900b, an assembly device, and the outer alignment device 200 of the above embodiment. The outer needle holder loading device 700 has been modified to provide the outer needle holder 322. The functions of the inner needle holder loading device 400, inner needle loading device 500, inner glue dispensing device 600a, inner curing device 600b, outer needle loading device 800, outer glue dispensing device 900a, and outer curing device 900b remain unchanged. The assembly device is used to assemble the outer needle assembly 320 to the inner needle assembly 310, and the external alignment device 200 is used to align the blade surfaces of the inner needle assembly 310 with the blade surfaces of the outer needle assembly 320. When the assembly device assembles the outer needle assembly 320 and the inner needle assembly 310, the outer needle holder 322 and the inner needle holder 312 cannot be aligned.

[0046] The inner needle holder loading device 400, inner needle loading device 500, inner glue dispensing device 600a, inner curing device 600b, assembly device, and outer alignment device 200 are arranged sequentially according to the process steps. The outer needle holder loading device 700, outer needle loading device 800, outer glue dispensing device 900a, outer curing device 900b, assembly device, and outer alignment device 200 are arranged sequentially according to the process steps. The alignment between the outer needle 321 and the outer needle holder 322, as well as the inner alignment device 100 described in the above embodiment, can be configured as needed.

[0047] The various technical features of the above-described embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the various technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0048] Those skilled in the art should recognize that the above embodiments are merely intended to illustrate the present invention and are not intended to limit the present invention. Any appropriate changes and modifications to the above embodiments fall within the scope of the present invention as long as they are within the spirit of the present invention.

Claims

1. A blade face positioning device, wherein a material (300) comprises an inner needle assembly (310) and an outer needle assembly (320) sleeved on the outer portion of the inner needle assembly (310), wherein the inner needle assembly comprises an inner needle and an inner needle seat, and wherein: The blade face alignment device comprises an inner alignment device (100) and an outer alignment device (200), wherein the inner alignment device (100) is used for aligning the inner needle and the inner needle seat, and the outer alignment device (200) comprises an outer detection component (210) and an outer adjustment component (220), wherein the outer detection component (210) is used for detecting whether the blade face of the inner needle component (310) and the blade face of the outer needle component (320) are in an aligned state, and the outer adjustment component (220) is used for driving the outer needle component (320) to move until the blade face of the outer needle component (320) and the blade face of the inner needle component (310) are aligned, and the outer adjustment component (220) comprises an outer rotating member (223) and an outer translation member (224). The outer rotating member (223) is used to drive the blade surface of the outer needle assembly (320) to rotate relative to the blade surface of the inner needle assembly (310), so that the blade surface of the outer needle assembly (320) faces the same direction as the blade surface of the inner needle assembly (310). The outer translation member (224) is used to drive the blade surface of the outer needle assembly (320) to translate relative to the blade surface of the inner needle assembly (310), so that the blade surface of the outer needle assembly (320) and the blade surface of the inner needle assembly (310) are in an aligned state in the axial direction; The minimum angle between the projections of the long axis of the blade surface of the outer needle assembly (320) and the long axis of the blade surface of the inner needle assembly (310) in the same vertical plane is α, and the distance between the midpoint of the long axis of the blade surface of the outer needle assembly (320) and the midpoint of the long axis of the blade surface of the inner needle assembly (310) in the same vertical plane is d. The external detection component (210) detects that 0≤α≤15° and 0≤d≤5mm, and determines that the blade surface of the outer needle assembly (320) and the blade surface of the inner needle assembly (310) are in alignment.

2. The blade face positioning device according to claim 1, characterized in that: The internal alignment device also includes an internal detection component (110) and an internal adjustment component (120), wherein the internal detection component (110) detects whether the blade surface of the inner needle (311) and a specific part of the inner needle seat (312) are in an aligned state, and the internal adjustment component (120) is used to drive the blade surface of the inner needle (311) to move to align with the specific part of the inner needle seat (312).

3. The blade face positioning device according to claim 2, characterized in that: The inner adjustment assembly (120) includes an inner rotating member (123), and the inner rotating member (123) is used to drive the blade surface of the inner needle (311) to rotate relative to a specific position of the inner needle seat (312).

4. A medical device production line, characterized by: It comprises the blade face positioning device according to any one of claims 1 to 3.

5. The medical device production line according to claim 4, characterized in that: The outer needle assembly (320) includes an outer needle seat (322) and an outer needle (321). The medical device production line also includes an outer needle seat loading device (700) for assembling the outer needle seat (322) and the inner needle seat (312), and an outer needle loading device (800) for assembling the outer needle (321) and the outer needle seat (322). The outer needle seat loading device (700), the outer needle loading device (800), and the outer alignment device (200) are distributed in sequence according to the process.

6. The medical device production line according to claim 5, characterized in that: The medical device production line further comprises an external glue dispensing device (900a) and an external curing device (900b), wherein the external glue dispensing device (900a) is used to apply glue to the connection between the outer needle (321) and the outer needle seat (322), and the external curing device (900b) is used to cure the glue at the connection between the outer needle (321) and the outer needle seat (322), and the projections of the external glue dispensing device (900a) and the external alignment device (200) in the horizontal plane overlap, or the projections of the external curing device (900b) and the external alignment device (200) in the horizontal plane overlap.

7. The medical device production line according to claim 5, characterized in that: The medical device production line also includes an inner needle seat loading device (400) for providing the inner needle seat (312), an inner needle loading device (500) for assembling the inner needle (311) and the inner needle seat (312), the inner alignment device (100) includes an inner detection component (110) and an inner adjustment component (120), and the inner needle seat loading device (400), the inner needle loading device (500), the inner alignment device (100), and the outer needle seat loading device (700) are distributed in sequence according to the process.

8. The medical device production line according to claim 7, characterized in that: The medical device production line further comprises an internal glue dispensing device (600a) and an internal curing device (600b), wherein the internal glue dispensing device (600a) is used to apply glue to the connection between the inner needle (311) and the inner needle seat (312), and the internal curing device (600b) is used to cure the glue at the connection between the inner needle (311) and the inner needle seat (312), and the projections of the internal glue dispensing device (600a) and the internal alignment device (100) in the horizontal plane overlap, or the projections of the internal curing device (600b) and the internal alignment device (100) in the horizontal plane overlap.

9. The medical device production line according to claim 4, characterized in that: The outer needle assembly (320) includes an outer needle seat (322) and an outer needle (321). The medical device production line also includes an inner needle seat loading device (400) for providing the inner needle seat (312), an inner needle loading device (500) for assembling the inner needle (311) and the inner needle seat (312), an outer needle seat loading device (700) for providing the outer needle seat (322), an outer needle loading device (800) for assembling the outer needle (321) and the outer needle seat (322), and an assembly device for assembling the outer needle seat (322) and the inner needle seat (312). The inner needle seat loading device (400), the inner needle loading device (500), the assembly device and the outer alignment device (200) are distributed in sequence according to the process. The outer needle seat loading device (700), the outer needle loading device (800), the assembly device and the outer alignment device (200) are distributed in sequence according to the process.

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