Fixture for sterilizing pre-filled syringe

By designing a clamp for sterilizing pre-filled syringes, the problem of rubber stopper detachment under high temperature and pressure was solved, achieving stable clamping and efficient sterilization, and reducing costs.

CN223901009UActive Publication Date: 2026-02-13SHANGHAI BEIRONG BIOGENETIC ENG CO LTD
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Patent Information

Application Number
CN202520182294.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-05
Publication Date
2026-02-13
Estimated Expiration
2035-02-05

AI Technical Summary

Technical Problem

When sterilizing pre-filled syringes, the rubber stoppers in existing sterilizers are prone to falling off under high temperature and pressure, leading to sterilization failure or product damage. In addition, ventilated steam sterilizers are expensive.

Method used

A clamp for sterilizing pre-filled syringes was designed, including a base plate and a top plate connected by a telescopic rod, and equipped with an insertion hole, an insertion block and an adapter pad to clamp the pre-filled syringes, prevent the rubber stopper from falling off, and allow multiple clamps to be stacked for use.

Benefits of technology

It improves the stability of pre-filled syringes during sterilization and transportation, prevents rubber stopper detachment, reduces the risk of sterilization failure, and improves space utilization.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a clamp for sterilizing a pre-filled syringe, which relates to the technical field of clamps and comprises a bottom plate and a top plate, two telescopic rods are connected between the bottom plate and the top plate, and a plurality of first adaptive base plates and second adaptive base plates are respectively mounted on the sides, close to each other, of the bottom plate and the top plate. A plurality of convex blocks are fixedly connected to the top of the first adaptive base plate, a plurality of grooves are formed in the bottom of the second adaptive base plate, and a plurality of pre-filled syringes are connected between the first adaptive base plate and the second adaptive base plate; the bottom plate and the top plate can be connected together through the telescopic rod, the pre-filled syringe is clamped between the bottom plate and the top plate, meanwhile, the bottom of the pre-filled syringe can be blocked through the protruding block on the first adaptive base plate inserted into the bottom plate so that a piston can be prevented from falling off, and then the pre-filled syringe can be stably clamped in cooperation with the second adaptive base plate inserted into the top plate; and meanwhile, the clamp can be stacked up and down, left and right and front and back for use, so that the stability is better during sterilization or transportation.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of clamp, especially pre-filled syringe sterilization clamp. BACKGROUND

[0002] In the field of medicine manufacturing, pre-filled syringe as a convenient sterile injection device, its sterilization process is very important. The traditional sterilization method, such as moist heat sterilization method, is to use saturated steam, superheated water spray and other means to make the protein and nucleic acid in the microbial body denatured to kill microorganisms. However, the existing sterilization pot has significant problems when sterilizing pre-filled syringes: due to the sharp change of pressure and temperature, the rubber plug of the syringe is easy to be pressed out, resulting in sterilization failure or product damage.

[0003] The existing ordinary type sterilization pot design does not take into account the special structure of pre-filled syringe, especially in the case of content thermal expansion and contraction leading to rubber plug falling off from the tail under high temperature and high pressure environment. Only the ventilated steam sterilization pot can solve the problem of bottle explosion by pressure relief, but its cost is often one or even several times of ordinary sterilization pot, and the energy consumption and maintenance cost are higher.

[0004] To solve the above problems, the pre-filled syringe sterilization clamp is provided. INVENTION CONTENTS

[0005] The pre-filled syringe sterilization clamp is provided to solve the above technical problems.

[0006] To solve the above technical problems, the pre-filled syringe sterilization clamp provided by the utility model is provided, which comprises a bottom plate and a top plate, the top plate is located above the bottom plate, two front and rear distributed telescopic rods are connected between the bottom plate and the top plate, a plurality of insertion holes are formed on the side of the bottom plate and the top plate close to each other, a plurality of first and second adaptive pads are respectively installed on the side of the bottom plate and the top plate close to each other, a plurality of insertion blocks are fixedly connected to the outer side of the first and second adaptive pads, the first and second adaptive pads are respectively connected with the bottom plate and the top plate through the insertion blocks and the insertion holes, the second adaptive pad is located directly above the first adaptive pad, a plurality of protrusions are fixedly connected to the top of the first adaptive pad, a plurality of recesses are formed in the bottom of the second adaptive pad, a plurality of pre-filled syringes are connected between the first and second adaptive pads, the top of the pre-filled syringe extends into the recess, and the protrusion is located at the bottom of the pre-filled syringe.

[0007] Preferably, the telescopic rod is composed of a connecting cylinder, a connecting rod and a bolt, the connecting rod is above the connecting cylinder and extends into the connecting cylinder, the bolt is screwed on one side of the connecting cylinder, the connecting rod and the connecting cylinder are fixedly connected through the bolt, and one threaded connector is fixedly connected to the bottom of the connecting cylinder and the top of the connecting rod respectively.

[0008] Preferably, a plurality of limiting blocks are integrally formed on the bottom of the bottom plate, and a plurality of limiting grooves are formed on the top of the top plate.

[0009] Preferably, the connecting blocks are fixedly connected to one side and the back side of the bottom plate and the top plate, and the embedding grooves are formed on the front side and the other side of the bottom plate and the top plate.

[0010] Preferably, the positioning plate is connected between the bottom plate and the top plate, the pre-filled syringe penetrates through the positioning plate, and the positioning plate is provided with a notch on each of the front side and the back side, and the telescopic rod penetrates through the notch.

[0011] Compared with the related art, the pre-filled syringe sterilization clamp has the following beneficial effects:

[0012] The bottom plate and the top plate are connected together through the telescopic rod, the pre-filled syringe is clamped between the bottom plate and the top plate, the protrusion on the first adaptive pad plate inserted on the bottom plate can block the bottom of the pre-filled syringe to prevent the piston from falling off, and the second adaptive pad plate inserted on the top plate can stably clamp the pre-filled syringe, the clamp can be stacked up and down, left and right, and front and back, the stability is better during sterilization or transportation, the space utilization is improved, and the pre-filled syringes can be sterilized in large quantities at one time. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 The overall structure diagram of the pre-filled syringe sterilization clamp is provided in the utility model.

[0014] Figure 2 The local first perspective structure diagram of the pre-filled syringe sterilization clamp is provided in the utility model.

[0015] Figure 3 The local second perspective structure diagram of the pre-filled syringe sterilization clamp is provided in the utility model.

[0016] Figure 4 The telescopic rod structure diagram of the pre-filled syringe sterilization clamp is provided in the utility model.

[0017] Figure 5The utility model discloses a pre -filling sealed syringe sterilization anchor clamps's positioning plate structure schematic diagram is provided for the utility model,

[0018] Figure 6 The utility model discloses a pre -filling sealed syringe sterilization anchor clamps's pre -filling sealed syringe, first adaptation pad plate and second adaptation pad plate position relation structure schematic diagram is provided for the utility model,

[0019] Figure 7 The utility model discloses a pre -filling sealed syringe sterilization anchor clamps's for 5ml syringe's anchor clamps use effect display drawing,

[0020] Figure 8 The utility model discloses a pre -filling sealed syringe sterilization anchor clamps's for 5ml syringe's anchor clamps first visual angle structure schematic drawing,

[0021] Figure 9 The utility model discloses a pre -filling sealed syringe sterilization anchor clamps's for 5ml syringe's anchor clamps second visual angle structure schematic drawing,

[0022] Figure 10 The utility model discloses a pre -filling sealed syringe sterilization anchor clamps's stack connection use effect display drawing.

[0023] Marked number: 1, bottom plate, 2, top plate, 3, telescopic link, 31, connecting cylinder, 32, connecting rod, 33, bolt, 4, threaded connector, 5, pre -filling sealed syringe, 6, positioning plate, 61, notch, 7, jack, 8, first adaptation pad plate, 81, lug, 9, second adaptation pad plate, 91, recess, 10, plug, 11, limit block, 12, limit slot, 13, slot, 14, connecting block. Specific implementation

[0024] The utility model discloses an example, by, Figures 1-10 The utility model discloses a pre -filling sealed syringe sterilization anchor clamps's pre -filling sealed syringe, first adaptation pad plate and second adaptation pad plate position relation structure schematic diagram is provided for the utility model,

[0025] According to the size of the pre-filled syringe 5 to be sterilized, such as 1ml, 3ml, 5ml, etc., the pre-filled syringes 5 of 1ml and 3ml are sterilized in a group of 100 in a 10*10 distribution, such as Figures 1-3 , the pre-filled syringes 5 of 5ml are sterilized in a group of 64 in an 8*8 distribution, such as Figures 7-9 , since the number of pre-filled syringes 5 in a group and the arrangement mode are different for different sizes, the number of protrusions 81 on the first adapter pad 8 and the number of recesses 91 on the second adapter pad 9 are also different, for example, the pre-filled syringes 5 of 1ml and 3ml are sterilized in a group of 100 in a 10*10 distribution, the first adapter pad 8 has 10 protrusions 81, and the second adapter pad 9 has 10 recesses 91, the first adapter pad 8 and the second adapter pad 9 are inserted on the bottom plate 1 and the top plate 2 through the insertion block 10, and then the pre-filled syringes 5 are uniformly arranged through the positioning plate 6.

[0026] The telescopic rod 3 is composed of a connecting cylinder 31, a connecting rod 32 and a bolt 33, the connecting rod 32 is located above the connecting cylinder 31 and extends into the connecting cylinder 31, the bolt 33 is threadedly connected on one side of the connecting cylinder 31, the connecting rod 32 and the connecting cylinder 31 are fixedly connected through the bolt 33, and one threaded connector 4 is fixedly connected to the bottom of the connecting cylinder 31 and the top of the connecting rod 32 respectively, and the telescopic rod 3 is threadedly connected between the two bottom plates 1 and the top plate 2 through the two threaded connectors 4. The telescopic rod 3 can connect and fix the bottom plate 1 and the top plate 2 together, so that the pre-filled syringes 5 are clamped and fixed between the bottom plate 1 and the top plate 2, and the connecting cylinder 31 and the connecting rod 32 in the telescopic rod 3 can be disassembled, so as to facilitate the clamping of the pre-filled syringes 5 in the early stage and the disassembly and removal operation in the later stage, and also facilitate cleaning and disinfection.

[0027] A plurality of limiting blocks 11 are integrally formed on the bottom of the bottom plate 1, a plurality of limiting grooves 12 are formed on the top of the top plate 2, and the limiting blocks 11 and the limiting grooves 12 are matched. When stacked up and down, the limiting blocks 11 and the limiting grooves 12 cooperate with each other to limit and connect the clamps distributed up and down, so that the stability of the adjacent clamps up and down is better, facilitating stacking and transportation.

[0028] The connecting blocks 14 are fixedly connected to one side and the rear side of the bottom plate 1 and the top plate 2, the embedding grooves 13 are formed on the front side and the other side of the bottom plate 1 and the top plate 2, and the embedding grooves 13 and the connecting blocks 14 are matched. When stacked left and right and front and back, the connecting blocks 14 and the embedding grooves 13 cooperate with each other to connect the clamps front and back and left and right together, so that the stability of the stacked clamps is better.

[0029] The positioning plate 6 is connected between the bottom plate 1 and the top plate 2, the pre-filled syringe 5 penetrates through the positioning plate 6, the positioning plate 6 is provided with a notch 61 on each of the front and rear sides, and the telescopic rod 3 penetrates through the notch 61. The positioning plate 6 is an existing product, and the pre-filled syringe 5 is placed through the positioning plate during conventional sterilization. At this time, the pre-filled syringe 5 can be positioned and arranged through the positioning plate first, and then clamped and fixed through the clamp. The notch 61 on the positioning plate 6 can avoid the interference between the positioning plate 6 and the telescopic rod 3.

[0030] Working principle:

[0031] Before use, the connecting barrel 31 and the connecting rod 32 in the telescopic rod 3 are separated, and the connecting barrel 31 and the connecting rod 32 are respectively threadedly connected to the bottom plate 1 and the top plate 2 through the threaded connector 4. According to the different sizes of the pre-filled syringes 5 required for sterilization, such as 1ml, 3ml, 5ml, etc., the pre-filled syringes 5 of 1ml and 3ml are each a group of 100, distributed in 10*10 during sterilization, and the pre-filled syringes 5 of 5ml are each a group of 64, distributed in 8*8 during sterilization. Since the number of pre-filled syringes 5 of different sizes in a group and the arrangement mode are different during sterilization, the number of protrusions 81 on the first adaptive pad plate 8 and the number of recesses 91 on the second adaptive pad plate 9 are also different. For example, taking the pre-filled syringes 5 of 1ml and 3ml as an example, each a group of 100, distributed in 10*10, the first adaptive pad plate 8 has 10 protrusions 81, and the second adaptive pad plate 9 has 10 recesses 91. First, the first adaptive pad plate 8 and the second adaptive pad plate 9 are inserted into the bottom plate 1 and the top plate 2 through the plug 10, and then the pre-filled syringes 5 are uniformly arranged through the positioning plate 6. Finally, the bottom plate 1 and the top plate 2 are clamped at both ends of the pre-filled syringes 5, and the cap of the pre-filled syringe 5 is inserted into the recess 91, while the other end of the pre-filled syringe 5 is blocked by the protrusion 81. When the bottom plate 1 and the top plate 2 clamp the pre-filled syringes 5, the connecting rod 32 and the connecting barrel 31 in the telescopic rod 3 are also re-inserted together, and the connecting barrel 31 and the connecting rod 32 are fixedly connected by rotating the bolt 33. At this time, the telescopic rod 3 becomes an integral whole to fixedly connect the bottom plate 1 and the top plate 2 together, and the plurality of pre-filled syringes 5 between them are also clamped. During sterilization, the piston in the pre-filled syringe 5 is blocked by the protrusion 81 to prevent the piston from falling out of the pre-filled syringe 5 when the piston moves due to thermal expansion and contraction. During sterilization and transportation, multiple groups of clamps can be stacked up, down, left, right, and front and back. When stacked up and down, the limiting block 11 at the bottom of the bottom plate 1 in the upper clamp is inserted into the limiting groove 12 on the top plate 2 in the lower clamp. The connecting blocks 14 on the bottom plate 1 and the top plate 2 in the right and front clamps are inserted into the embedding grooves 13 on the bottom plate 1 and the top plate 2 in the left and rear clamps, thereby realizing the stacking of multiple groups of clamps up, down, front and back, left and right. The stability of the stacked clamps is better, and the clamps are more stable during sterilization and transportation.

Claims

1. A pre-filled syringe sterilization jig, characterized by, The utility model provides a kind of injection device, including bottom plate (1) and top plate (2), the top plate (2) is located above bottom plate (1), two front and rear distribution telescopic rods (3) are connected between bottom plate (1) and top plate (2), a plurality of jack plugs (7) are set in the side of bottom plate (1) and top plate (2) and mutually close, a plurality of first adaptive backing plate (8) and second adaptive backing plate (9) are respectively installed in the side of bottom plate (1) and top plate (2) and mutually close, the outside of first adaptive backing plate (8) and second adaptive backing plate (9) is fixedly connected with a plurality of jack plugs (10), and first adaptive backing plate (8) and second adaptive backing plate (9) are respectively connected with bottom plate (1) and top plate (2) by jack plug (10) and jack plug (7), and second adaptive backing plate (9) is located above first adaptive backing plate (8), and the top of first adaptive backing plate (8) is fixedly connected with a plurality of lugs (81), and the bottom of second adaptive backing plate (9) is provided with a plurality of grooves (91), and a plurality of pre-filled syringes (5) are connected between first adaptive backing plate (8) and second adaptive backing plate (9), and the top of pre-filled syringe (5) extends to the inside of groove (91), and lug (81) is located at the bottom of pre-filled syringe (5).

2. The pre-filled syringe sterilization clamp of claim 1, wherein, The telescopic rod (3) is composed of a connecting cylinder (31), a connecting rod (32), and a bolt (33), the connecting rod (32) is located above the connecting cylinder (31) and extends into the connecting cylinder (31), the bolt (33) is threadedly connected to one side of the connecting cylinder (31), the connecting rod (32) and the connecting cylinder (31) are fixedly connected through the bolt (33), one threaded connector (4) is fixedly connected to the bottom of the connecting cylinder (31) and the top of the connecting rod (32), respectively, and the telescopic rod (3) is threadedly connected between the two bottom plates (1) and top plates (2) through the two threaded connectors (4).

3. The pre-filled syringe sterilization clamp of claim 1, wherein, The bottom plate (1) is integrally formed with a plurality of limiting blocks (11) at the bottom, the top plate (2) is provided with a plurality of limiting grooves (12) at the top, and the limiting blocks (11) and the limiting grooves (12) are matched.

4. The pre-filled syringe sterilization clamp of claim 1, wherein, The bottom plate (1) and the top plate (2) are fixedly connected with connecting blocks (14) on one side and the back side, the front side and the other side of the bottom plate (1) and the top plate (2) are provided with embedding grooves (13), and the embedding grooves (13) and the connecting blocks (14) are matched.

5. The pre-filled syringe sterilization clamp of claim 1, wherein, The bottom plate (1) and the top plate (2) are connected with a positioning plate (6), the pre-filled syringe (5) penetrates through the positioning plate (6), the positioning plate (6) is provided with a notch (61) on the front and back sides, respectively, and the telescopic rod (3) penetrates through the notch (61).