Positioning and packaging device for injectors

Abstract

The utility model discloses a positioning and packaging device for syringes, and relates to the technical field of medicine packaging, the upper ends of containing cylinders are fixed on a supporting base, equivalently, the containing cylinders protrude out of the supporting base downwards, and a plurality of containing cylinders are distributed on the supporting base in an array mode; the containing cylinders are arranged in an up-down axial penetrating mode, and a pre-filling and sealing syringe is placed in each containing cylinder. The limiting block is arranged on the upper surface of the supporting base in a protruding mode, when the pre-filling syringe penetrates through the containing cylinder from top to bottom to be placed at the lowest position, the lower surface of a handle of the pre-filling syringe is supported by the upper surface of the supporting base, the handle is limited by the limiting block in the radial direction, and the handle cannot shake at will; the whole pre-filled syringe is limited by limiting the handle, so that the pre-filled syringe is ensured to be in a vertical state, the shaking angle of the pre-filled syringe is reduced, and a tube body is effectively prevented from severely inclining.

Description

Technical Field

[0001] This utility model relates to the field of pharmaceutical packaging technology, and more specifically to a positioning packaging device for syringes. Background Technology

[0002] Prefilled syringes (PFS), also known as pre-filled syringes or pre-filled needles, combine the functions of a drug packaging container and a syringe into one.

[0003] In the packaging stage, pre-filled syringes are placed into specially designed honeycomb plates. These plates feature a modular design with multiple neatly arranged honeycomb cells inside. Each cell is a cylindrical cavity open at both ends, precisely accommodating one pre-filled syringe. This honeycomb packaging not only provides physical protection for the syringes but also ensures stability during transport, while facilitating mechanized operation and batch management.

[0004] When filling pre-filled syringes, the honeycomb plate containing an empty pre-filled syringe is inserted into a specific tooling, the medicine is filled into the empty pre-filled syringe, and a rubber stopper is added to complete the filling process.

[0005] Combination Figure 8 The diagram illustrates the assembly structure of a pre-filled syringe 40 and a needle sheath 410. The pre-filled syringe 40 includes a cylindrical portion 401 and a handle 402. The handle 402 is fixedly mounted at one end of the cylindrical portion 401. To protect the pre-filled syringe 40, a needle sheath 410 is fitted onto the other end of the cylindrical portion 401. The outer diameter of the needle sheath 410 is larger than the outer diameter of the cylindrical portion 401 of the pre-filled syringe 40. The needle sheath 410 needs to pass through the honeycomb aperture, therefore the inner diameter of the honeycomb aperture must be larger than the outer diameter of the cylindrical portion 401. The outer surface of the cylindrical portion 401 and the inner surface of the honeycomb aperture cannot fully contact each other, resulting in a large gap. The pre-filled syringe 40 is difficult to keep vertical within the honeycomb aperture and is prone to tilting and shifting. Vibration during transfer, particularly from the honeycomb plate, exacerbates the tilting of the pre-filled syringe 40. If the honeycomb plate tilts, the pre-filled syringes 40 are highly likely to collide with each other. In addition to being fitted with a needle sheath 410, the pre-filled syringe 40 may also be fitted with a needle cap with an outer diameter larger than that of the cylindrical portion 401.

[0006] Tilting a pre-filled syringe may cause it to collide and interfere with each other, potentially leading to damage. Furthermore, an excessively large tilt angle may prevent the opening at the top of the pre-filled syringe from aligning properly with the nozzle of the filling machine that discharges the liquid.

[0007] For those skilled in the art, how to position the pre-filled syringe to prevent tilting is a technical problem that needs to be solved. Utility Model Content

[0008] The core of this utility model is to provide a positioning packaging device for syringes. A support base supports the lower surface of the handle, and a limiting block on the support base radially limits the handle of the pre-filled syringe, thereby ensuring the pre-filled syringe is in a vertical position, reducing the sway angle of the pre-filled syringe, and effectively preventing severe tilting of the syringe body. The specific solution is as follows:

[0009] A positioning packaging device for syringes, comprising:

[0010] Support base, used for positioning and supporting;

[0011] A receiving tube, the upper end of which is fixed to the support base, and several of the receiving tubes are arranged in an array; the receiving tubes are arranged axially through each other, and each receiving tube is used to hold a pre-filled syringe;

[0012] A limiting block protrudes from the upper surface of the support base and is used to radially limit the handle of the pre-filled syringe, the lower surface of which contacts the upper surface of the support base.

[0013] Optionally, the inner surface of the receiving cylinder is provided with a conical surface to facilitate demolding;

[0014] Alternatively, the inner surface of the receiving cylinder may be configured as a straight cylindrical structure.

[0015] Optionally, a first chamfer is provided on the lower inner edge of the receiving cylinder;

[0016] And / or, a second chamfer is provided on the inner edge of the upper end of the receiving cylinder.

[0017] Optionally, the lower end of the receiving tube is provided with at least two slits, so that the lower end of the receiving tube forms at least two segments.

[0018] Optionally, the limiting block corresponding to the receiving cylinder is an open protrusion in the circumferential direction;

[0019] Alternatively, the limiting block corresponding to the receiving cylinder is a closed protrusion in the circumferential direction;

[0020] Alternatively, some of the limiting blocks corresponding to the receiving cylinders may be open protrusions in the circumferential direction, while others may be closed protrusions in the circumferential direction. Optionally, the shape formed by the limiting blocks corresponding to each receiving cylinder may be a regular polygon, a rectangle, or a circle.

[0021] Optionally, the shape formed by the limiting blocks corresponding to each of the receiving cylinders is a regular hexagon;

[0022] The adjacent receiving cylinders share a portion of the limiting block.

[0023] Optionally, the limiting block has a structure with equal thickness at the top and bottom along the radial direction; the difference between the radius of the inscribed circle of the limiting block and the radius of the circumscribed circle of the handle does not exceed 0.2 mm;

[0024] Alternatively, the thickness of the limiting block gradually decreases from bottom to top.

[0025] Optionally, the ratio of the height of the limiting block to the thickness of the handle is greater than or equal to 0.5.

[0026] Optionally, the support base includes a first base plate, a connecting portion, and a second base plate. The first base plate is fixed to the upper end of the receiving cylinder, the connecting portion is fixed to the edge of the first base plate, and the second base plate is fixed to the lower outer side of the connecting portion and parallel to the first base plate.

[0027] The supporting base, the receiving cylinder, and the limiting block are integrally injection molded.

[0028] Optionally, a first reinforcing rib is provided between the second substrate and the connecting portion; a second reinforcing rib is provided between at least a portion of the adjacent receiving cylinders;

[0029] The second substrate has a positioning notch and a positioning baffle on its two opposite sides.

[0030] This utility model also provides a positioning packaging device for syringes, comprising:

[0031] Support base, used for positioning and supporting;

[0032] A receiving tube, the upper end of which is fixed to the support base, and several of the receiving tubes are arranged in an array; the receiving tubes are arranged axially through each other, and each receiving tube is used to hold a pre-filled syringe;

[0033] A limiting block protrudes from the upper surface of the support base and is used to radially limit the handle of the pre-filled syringe, the lower surface of which contacts the upper surface of the support base.

[0034] The shape formed by the limiting blocks corresponding to each of the receiving cylinders is a regular polygon, a rectangle, or a circle.

[0035] This utility model provides a positioning and packaging device for syringes. The upper end of the receiving tube is fixed to the support base, which is equivalent to the receiving tube protruding downward from the support base. Several receiving tubes are arranged in an array on the support base. The receiving tubes are arranged axially through each other, and a pre-filled syringe is placed in each receiving tube. The limiting block protrudes from the upper surface of the support base. When the pre-filled syringe is inserted into the lowest position by passing through the receiving tube from top to bottom, the lower surface of the handle of the pre-filled syringe is supported by the upper surface of the support base, and the handle is radially limited by the limiting block. The handle cannot be shaken at will. By limiting the handle, the entire pre-filled syringe is limited, ensuring that the pre-filled syringe is in a vertical state, reducing the shaking angle of the pre-filled syringe, and effectively preventing serious tilting of the syringe body. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 This is an axonometric view from an oblique top angle of one embodiment of the positioning and packaging device for syringes of this utility model;

[0038] Figure 2A This is a downward-angled isometric view of one embodiment of the positioning and packaging device for syringes of this utility model;

[0039] Figure 2B This is a downward-angled isometric view of another embodiment of the positioning and packaging device for syringes of this utility model;

[0040] Figure 3A This is a top view of one embodiment of the positioning and packaging device for syringes according to this utility model;

[0041] Figure 3B for Figure 3A A magnified view of part A in the middle;

[0042] Figure 4 This is an axonometric view from an oblique top angle, showing the positioning and packaging device for syringes of this utility model in conjunction with a pre-filled syringe.

[0043] Figure 5 This is an isometric view from a downward angle showing the positioning and packaging device for syringes of this utility model in conjunction with a pre-filled syringe.

[0044] Figure 6A This is a top view of the positioning and packaging device for syringes of this utility model in conjunction with a pre-filled syringe;

[0045] Figure 6B for Figure 6A A magnified view of part B in the middle section;

[0046] Figure 7A This is a front view of the positioning and packaging device for syringes of this utility model in conjunction with a pre-filled syringe;

[0047] Figure 7B for Figure 7A Cross-sectional view along the AA direction;

[0048] Figure 7C for Figure 7B A magnified view of part C in the middle;

[0049] Figure 8 This is an isometric view of a pre-filled syringe with a needle guard.

[0050] The image includes:

[0051] Support base 10; first substrate 110; connecting part 120; second substrate 130; positioning notch 131; positioning baffle 132; first reinforcing rib 140;

[0052] Receiving cylinder 20; conical surface 201; first chamfer 202; notch 203; second reinforcing rib 210;

[0053] Limit block 30;

[0054] Prefilled syringe 40; cylindrical part 401; handle 402; needle sheath 410. Detailed Implementation

[0055] This utility model discloses a positioning and packaging device for syringes, applicable to pharmaceutical filling scenarios. It is used to place pre-filled syringes 40, insert empty pre-filled syringes 40, and inject liquid into them. Besides placing pre-filled syringes 40, it can also be applied to other slender rod-shaped structures with handles. For ease of explanation, this article primarily uses the placement of pre-filled syringes 40 as an example and does not imply that the positioning and packaging device for syringes can only be applied to pre-filled syringes.

[0056] It should be noted that the up and down direction referred to in this article is... Figure 1 The Z-axis direction indicates the state during the filling process; the Z-axis direction is the through direction of the receiving cylinder 20, and also the length direction of the pre-filled syringe 40 when it is placed, i.e., the axial direction. The direction perpendicular to the Z-axis is radial. It should be understood that when the syringe is transferred using the positioning packaging device, it may tilt or other states. All dimensional ranges in this document should include endpoint values.

[0057] To enable those skilled in the art to better understand the technical solution of this utility model, the positioning and packaging device for syringes of this utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0058] Combination Figure 1 , Figure 2A , Figure 2B , Figure 4 , Figure 5 As shown, this utility model provides a positioning packaging device for syringes, including a support base 10, a receiving cylinder 20, and a limiting block 30. The support base 10, the receiving cylinder 20, and the limiting block 30 are fixed together as a single unit and can be integrally formed by injection molding or 3D printing. The entire positioning packaging device for syringes does not have any mechanically movable or detachable structures.

[0059] The support base 10 is used for positioning and support. It supports the pre-filled syringe 40 placed on it and can be positioned and engaged with a transfer mechanism, which drives the support base 10 and the pre-filled syringe 40 to move synchronously. The support base 10 can be a flat plate structure or a spatial structure with a bent shape, but the part in contact with the pre-filled syringe 40 should be planar. The specific construction of the support base 10 is described later.

[0060] Each receiving tube 20 is a cylindrical cavity structure that extends through both ends. The radial dimension of the inner cavity of the receiving tube 20 should be slightly larger than or equal to the dimension at the maximum outer diameter of the needle sheath 410 of the pre-filled syringe 40, so that the needle sheath 410 can be smoothly inserted into or removed from the receiving tube 20.

[0061] The upper end of the receiving cylinder 20 is fixed to the supporting base 10, and the lower end of the receiving cylinder 20 extends downward, forming a structure where the upper end is fixed and the lower end is suspended. The supporting base 10 has a certain planar area, in which several receiving cylinders 20 are arranged in an array. The array distribution includes various forms, such as rectangular arrays (forming horizontal and vertical crisscrossing distributions respectively), circular arrays (distributed on the circumference of circles with different radii), triangular grid arrays (array elements arranged in a triangular grid), and hexagonal arrays (array elements arranged in a hexagonal pattern).

[0062] The receiving cylinder 20 is arranged vertically through the body, and each receiving cylinder 20 is used to hold one pre-filled syringe 40. A support base 10 can hold multiple pre-filled syringes 40 simultaneously. Figure 8As shown, the pre-filled syringe 40 includes a cylindrical part 401 and a handle 402. The handle 402 is provided at one end of the cylindrical part 401, and a needle sheath 410 is fitted at the other end. The outer diameter of the needle sheath 410 is larger than the outer diameter of the cylindrical part 401, but smaller than the maximum length of the handle 402 in the radial direction.

[0063] The limiting block 30 protrudes upwards from the upper surface of the support base 10, forming a series of boss structures on the upper surface of the support base 10. The limiting block 30 radially limits the handle 402 of the pre-filled syringe 40, thus restricting the range of motion of the handle 402 in the XY plane. The gap between the handle 402 and the limiting block 30 is much smaller than the gap between the cylindrical portion 401 of the pre-filled syringe and the inner wall of the receiving cylinder 20. Under the constraint of the limiting block 30 and gravity, the handle 402 can only move slightly or not at all in the XY plane.

[0064] When the pre-filled syringe 40 is inserted into the receiving tube 20 from top to bottom and reaches the lowest position, the lower surface of the handle 402 contacts the upper surface of the support base 10, and the handle 402 is supported by the upper surface of the support base 10. At this time, the support base 10 bears the weight of the entire pre-filled syringe 40. Since the radial movement of the handle 402 is restricted by the limiting block 30, the radial displacement of the entire pre-filled syringe 40 is restricted and cannot move arbitrarily, thus ensuring the verticality of the pre-filled syringe 40. As the movement range of the entire pre-filled syringe 40 is reduced, the wobbling angle of the pre-filled syringe 40 is reduced, effectively preventing serious tilting of the tube body.

[0065] The receiving cylinder 20 is a cylindrical structure with a certain wall thickness. In one specific embodiment, the inner surface of the receiving cylinder 20 is set as a conical surface 201 for easy demolding, and the cross-section of the inner surface of the receiving cylinder 20 is circular. Figure 7C As shown in the embodiment illustrated, the cross-sectional area of ​​the inner surface of the receiving cylinder 20 gradually decreases from top to bottom, forming a flared shape that is larger at the top and smaller at the bottom. The conical shape of the receiving cylinder 20 facilitates mold release during injection molding, and the conical surface can provide guidance when the pre-filled syringe 40 is inserted from top to bottom. The top-larger-bottom-smaller structure is just one example, facilitating the upper mold to detach from bottom to top. When the lower mold is designed to form the receiving cylinder 20, the receiving cylinder 20 can be configured as a flared shape that is smaller at the top and larger at the bottom.

[0066] In another embodiment, the inner surface of the receiving cylinder 20 is configured as a straight cylindrical structure, and the inner surface of the receiving cylinder 20 has the same size from top to bottom. The inner surface of the receiving cylinder 20 can also have other cross-sectional shapes using 3D printing technology.

[0067] It should be noted that the inner surface of the receiving cylinder 20 can also adopt other shapes, such as a multi-faceted pyramid structure. These specific structures should all fall within the scope of protection of this utility model.

[0068] Combination Figure 7C As shown, a first chamfer 202 is provided on the lower inner edge of the receiving cylinder 20. The first chamfer 202 forms a flared structure with a smaller top and a larger bottom cross-section. The junction of the first chamfer 202 and the conical surface 201 is the point where the inner diameter of the receiving cylinder 20 is at its minimum. The first chamfer 202 can be in the form of a right angle or a rounded corner. When the pre-filled syringe 40 is pulled upward, the needle sheath 410 is at its maximum size. The first chamfer 202 can guide the needle sheath 410, preventing it from being stuck at the lower end of the receiving cylinder 20.

[0069] Similarly, a second chamfer can be provided on the upper inner edge of the receiving tube 20. The second chamfer forms a flared structure with a larger top and smaller bottom cross-section. The second chamfer can be a right angle or a rounded corner. When the pre-filled syringe 40 is inserted into the receiving tube 20 from top to bottom, the second chamfer guides the needle sheath 410, preventing the needle sheath 410 from being stuck by the upper end of the receiving tube 20.

[0070] The conical surface 201, the first chamfer 202, and the second chamfer can be provided by only one of them, or by providing two of them simultaneously, or by providing all three of them simultaneously. The receiving cylinder 20 can also omit any one of the three structures: the conical surface 201, the first chamfer 202, and the second chamfer.

[0071] Herein lies a specific structural dimension: the maximum outer diameter of the needle sheath 410 is 10.4 mm, the maximum outer diameter of the handle 402 is 13.9 mm, the inner diameter at the junction of the first chamfer 202 and the conical surface 201 is 10.6-10.65 mm, the maximum inner diameter of the conical surface 201 is 11.4-11.45 mm, and the maximum inner diameter of the inscribed circle of the limiting block 30 is 14.1 mm.

[0072] Combination Figure 2B As shown, in some embodiments, each receiving tube 20 has at least two cuts 203 at its lower end. The cuts 203 divide a small section of the lower end of the receiving tube 20 into at least two segments, with the portion between the two cuts 203 forming one segment. The axial depth of the cuts 203 should be greater than the axial height of the first chamfer 202. When the needle sheath 410 moves upward and contacts the first chamfer 202, a radial force is generated through the inclined surface of the first chamfer 202, which can cause the segments to undergo a certain degree of elastic deformation, making it easier for the needle sheath 410 to pass through.

[0073] Based on any of the above technical solutions and their combinations, the limiting block 30 can adopt various different configurations. The limiting block 30 corresponding to one receiving cylinder 20 can be a completely closed annular structure in the circumferential direction, or it can be multiple independent protrusions arranged circumferentially around the receiving cylinder 20. For all the receiving cylinders 20 arranged on the entire support base 10, they can all be configured as completely closed annular structures in the circumferential direction, or they can all be configured as open structures in the circumferential direction. Alternatively, some receiving cylinders 20 can have limiting blocks 30 that are not closed, while others can have limiting blocks 30 that are closed. Combined with... Figure 3B As shown, the limiting block 30 corresponding to the receiving cylinder 20 labeled I is an independent closed protrusion without a notch; the limiting block 30 corresponding to the receiving cylinder 20 labeled II is an unclosed protrusion with one notch; and the limiting block 30 corresponding to the receiving cylinder 20 labeled III is an unclosed protrusion with two notches. Of course, the number of notches in the limiting block 30 corresponding to the receiving cylinder 20 can be set to be more.

[0074] The specific structure of the limiting block 30 corresponding to each receiving cylinder 20 can be set independently. The blank area without the limiting block 30 is a planar area. When injection molding is used, after injection molding is completed, the entire injection-molded syringe is pushed out evenly by the positioning packaging device through the ejector pins pushing against these blank planar areas.

[0075] The shape and structure of the receiving cylinder 20 and the shape and structure of the limiting block 30 are independently set and there is no necessary connection between them. In some embodiments, the shape formed by the limiting block 30 corresponding to each receiving cylinder 20 is a regular polygon, rectangle, or circle. For a completely closed limiting block 30, it forms a complete regular polygon, rectangle, or circle; for an incomplete, unclosed limiting block 30, it forms a dashed regular polygon, rectangle, or circle. For regular polygons and rectangles, rounded corners are usually provided at the top corners, but it is not excluded that they are set as sharp corners.

[0076] Combination Figure 6B As shown, the handle 402 of the pre-filled syringe 40 has two arcuate edges and two straight edges, equivalent to cutting two arches out of a complete disc. The maximum distance between the two arcuate edges is greater than the distance between the two straight edges, and the maximum distance between the two arcuate edges should be greater than the radial dimension of the inner surface of the receiving cylinder 20. When the limiting block 30 is a regular polygon, the arcuate edges of the handle 402 are tangent to the inner edges of the polygon. When the limiting block 30 is rectangular, the long side corresponds to the two straight edges of the handle 402, and the short side corresponds to the two arcuate edges of the handle 402. In addition to the structure shown in the attached figure, the outer edge of the handle 402 can also be a full circle or other polygonal structures.

[0077] Whether it is a regular polygon, rectangle, or circle, the shape formed by the limiting block 30 surrounding the receiving cylinder 20 is different from the shape of the handle 402. A gap is left between the limiting block 30 and the handle 402 to provide space for gripping the handle 402 in some cases. For regular polygons, a larger gap is left between the straight edges of the limiting block 30 and the handle 402. For rectangles, gaps can be left at the straight edges or the rounded edges.

[0078] In one specific embodiment, the limiting blocks 30 corresponding to each receiving cylinder 20 form a regular hexagonal shape, combined with... Figure 6A , Figure 6B As shown, the receiving cylinders 20 are arranged in a vertical straight line, with adjacent columns staggered to form a hexagonal array. This structure allows for smaller spacing between columns, which helps improve space utilization; and adjacent receiving cylinders 20 share a portion of the limiting block 30, with receiving cylinders 20 on both sides of the limiting block 30, which helps reduce the complexity of the limiting block 30.

[0079] The thickness of the limiting block 30 can also be set in different ways. The thickness of the limiting block 30 refers to its dimension in the radial direction. In some embodiments, the limiting block 30 has a structure with equal thickness at both the top and bottom, and the distance between each position of the limiting block 30 and the handle 402 is equal. The difference between the radius of the inscribed circle of the limiting block 30 and the radius of the circumscribed circle of the handle 402 does not exceed 0.2mm. The size of the inscribed circle of the limiting block 30 is close to the size of the circumscribed circle of the handle 402, so that the limiting block 30 provides a more stable limiting effect on the handle 402.

[0080] In addition, the limiting block 30 can also be designed with different thicknesses at the top and bottom, with the upper part of the limiting block 30 being thinner and the lower part being thicker, and the thickness of the limiting block 30 gradually increasing from top to bottom. The inner wall of the limiting block 30 around the receiving cylinder 20 forms a slope that is wider at the top and narrower at the bottom. When the pre-filled syringe 40 is placed from top to bottom, the width of the upper end of the limiting block 30 is smaller, making it easier to insert the handle 402; the width of the lower end of the limiting block 30 is larger, providing better radial restriction for the handle 402. With the limiting block 30 having a structure that is narrower at the top and wider at the bottom, when the lower surface of the handle 402 contacts the upper surface of the support base 10, the edge of the handle 402 can just contact the side wall of the limiting block 30, thereby achieving a tighter limiting effect on the handle 402.

[0081] Combination Figure 7A , Figure 7B As shown, the thickness of the handle 402 refers to its axial dimension. Preferably, the ratio between the height of the limiting block 30 and the thickness of the handle 402 is greater than or equal to 0.5, including the endpoint values. The ratio can be 0.5, 1, 1.5, 2, etc. If the height of the limiting block 30 is too small, the limiting effect will be insufficient.

[0082] In some embodiments, the support base 10 employs a non-planar spatial structure. Figure 1 , Figure 2A As shown, the support base 10 includes a first substrate 110, a connecting portion 120, and a second substrate 130. The first substrate 110 and the second substrate 130 are parallel to each other, with the first substrate 110 located above the second substrate 130. The first substrate 110 is fixed to the upper end of the receiving cylinder 20, and the upper surface of the first substrate 110 in the support base 10 is in direct contact with the lower surface of the handle 402. The upper edge of the connecting portion 120 is fixed to the edge of the first substrate 110, and the connecting portion 120 extends downward at an angle. The second substrate 130 is fixed to the outer side of the lower edge of the connecting portion 120. The connecting portion 120 only connects to the outer peripheral edge of the first substrate 110, and the second substrate 130 extends outward along the XY plane. The connecting portion 120 is inclined from top to bottom and outward, which facilitates demolding after injection molding and ensures that the projections of the first substrate 110 and the second substrate 130 in the XY plane do not overlap. In this embodiment, the support base 10, the receiving cylinder 20, and the limiting block 30 are integrally injection molded to form an integrated positioning and packaging device for syringes.

[0083] Combination Figure 1 , Figure 4 As shown, a first reinforcing rib 140 is provided between the second substrate 130 and the connecting portion 120. The first reinforcing rib 140 is a vertical plate-like structure, perpendicular to both the upper surface of the second substrate 130 and the outer surface of the connecting portion 120. The outer edge of the entire second substrate 130 is approximately rectangular, and two or three first reinforcing ribs 140 are provided on each side to improve bending strength.

[0084] At least a portion of adjacent receiving cylinders 20 are provided with a second reinforcing rib 210. The second reinforcing rib 210 is provided between the receiving cylinders 20 that require reinforcement, and is located in the gap between the receiving cylinders 20. Figure 2A , Figure 5 As shown, each second reinforcing rib 210 simultaneously connects to three adjacent receiving cylinders 20.

[0085] The second substrate 130 has a positioning notch 131 and a positioning baffle 132 on its two opposite sides. The positioning notch 131 and the positioning baffle 132 are provided in the middle part of the two long sides of the second substrate 130. The positioning notch 131 and the positioning baffle 132 are provided in a one-to-one correspondence. The positioning baffle 132 is provided at the edge of the positioning notch 131. The positioning baffle 132 is a curved panel structure perpendicular to the second substrate 130. The locking block of the transfer mechanism can be locked into the positioning notch 131.

[0086] This utility model also relates to a positioning and packaging device for syringes, including a support base 10, a receiving cylinder 20, and a limiting block 30. The support base 10 is used for positioning and support; the upper end of the receiving cylinder 20 is fixed to the support base 10, and several receiving cylinders 20 are arranged in an array; the receiving cylinders 20 are arranged vertically through each other, and each receiving cylinder 20 is used to hold a pre-filled syringe 40; the limiting block 30 protrudes from the upper surface of the support base 10 and is used to radially limit the handle 402 of the pre-filled syringe 40, and the lower surface of the handle 402 contacts the upper surface of the support base 10. For the structure of the support base 10, the receiving cylinder 20, and the limiting block 30, please refer to the above description. The shape formed by the limiting block 30 corresponding to each receiving cylinder 20 is a regular polygon, rectangle, or circle, which can achieve the technical effects described above.

[0087] The positioning and packaging device for syringes of this invention has a simple structure and can be manufactured by injection molding. The top of the support base 10 is provided with a limiting block 30, which facilitates the positioning of the handle 402 of the pre-filled syringe 40; during filling, it reduces the swaying angle of the pre-filled syringe 40 in the receiving cylinder 20 when the pre-filled syringe 40 is pushed upward vertically, effectively preventing serious tilting of the syringe.

[0088] While fulfilling the functions of transporting and packaging the integrated safety device, it ensures the verticality / coaxiality of the pre-filled syringe 40 when it is assembled in the receiving tube 20, and at the same time eliminates the risk of interference when the pre-filled syringe 40 is inserted into and removed from the receiving tube 20.

[0089] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A positioning packaging device for syringes, characterized in that, include: Support base (10) is used for positioning support; A receiving tube (20) is fixed at its upper end to the support base (10), and several receiving tubes (20) are arranged in an array; the receiving tubes (20) are arranged vertically through each other, and each receiving tube (20) is used to hold a pre-filled syringe (40). A limiting block (30) protrudes from the upper surface of the support base (10) and is used to radially limit the handle (402) of the pre-filled syringe (40), the lower surface of the handle (402) contacting the upper surface of the support base (10).

2. The positioning and packaging device for syringes according to claim 1, characterized in that, The inner surface of the receiving cylinder (20) is provided with a conical surface (201) to facilitate demolding. Alternatively, the inner surface of the receiving tube (20) may be configured as a straight cylindrical structure.

3. The positioning and packaging device for syringes according to claim 1, characterized in that, The lower inner edge of the receiving tube (20) is provided with a first chamfer (202); And / or, the upper inner edge of the receiving tube (20) is provided with a second chamfer.

4. The positioning and packaging device for syringes according to claim 1, characterized in that, The lower end of the receiving tube (20) is provided with at least two cuts (203) so that the lower end of the receiving tube (20) forms at least two segments.

5. The positioning and packaging device for a syringe according to any one of claims 1 to 4, characterized in that, The limiting block (30) corresponding to the receiving cylinder (20) is an open protrusion in the circumferential direction; Alternatively, the limiting block (30) corresponding to the receiving cylinder (20) is a closed protrusion in the circumferential direction; Alternatively, some of the limiting blocks (30) corresponding to the receiving cylinder (20) are open protrusions in the circumferential direction, while the limiting blocks (30) corresponding to the other part of the receiving cylinder (20) are closed protrusions in the circumferential direction.

6. The positioning and packaging device for syringes according to claim 5, characterized in that, The shape formed by the limiting block (30) corresponding to each of the receiving cylinders (20) is a regular polygon, a rectangle or a circle.

7. The positioning and packaging device for syringes according to claim 6, characterized in that, The shape formed by the limiting blocks (30) corresponding to each of the aforementioned receiving cylinders (20) is a regular hexagon; The adjacent receiving cylinders (20) share a portion of the limiting block (30).

8. The positioning and packaging device for syringes according to claim 5, characterized in that, The limiting block (30) has a structure with equal thickness at the top and bottom along the radial direction; the difference between the radius of the inscribed circle of the limiting block (30) and the radius of the circumscribed circle of the handle (402) does not exceed 0.2mm; Alternatively, the thickness of the limiting block (30) gradually decreases from bottom to top.

9. The positioning and packaging device for syringes according to claim 5, characterized in that, The ratio of the height of the limiting block (30) to the thickness of the handle (402) is greater than or equal to 0.

5.

10. The positioning and packaging device for a syringe according to claim 5, characterized in that, The support base (10) includes a first substrate (110), a connecting part (120), and a second substrate (130). The first substrate (110) is fixed to the upper end of the receiving cylinder (20), the connecting part (120) is fixed to the edge of the first substrate (110), and the second substrate (130) is fixed to the lower outer side of the connecting part (120) and parallel to the first substrate (110). The support base (10), the receiving cylinder (20), and the limiting block (30) are integrally injection molded.

11. The positioning and packaging device for a syringe according to claim 10, characterized in that, A first reinforcing rib (140) is provided between the second substrate (130) and the connecting portion (120); a second reinforcing rib (210) is provided between at least a portion of the adjacent receiving cylinders (20). The second substrate (130) has a positioning notch (131) and a positioning baffle (132) on its two opposite sides.

12. A positioning packaging device for a syringe, characterized in that, include: Support base (10) is used for positioning support; A receiving tube (20) is fixed at its upper end to the support base (10), and several receiving tubes (20) are arranged in an array; the receiving tubes (20) are arranged vertically through each other, and each receiving tube (20) is used to hold a pre-filled syringe (40). A limiting block (30) is protruding from the upper surface of the support base (10) and is used to radially limit the handle (402) of the pre-filled syringe (40), the lower surface of the handle (402) contacting the upper surface of the support base (10); The shape formed by the limiting block (30) corresponding to each of the receiving cylinders (20) is a regular polygon, a rectangle or a circle.

Images