A syringe holder for preventing contamination

Abstract

The utility model discloses an anti -pollution syringe support, including first clamping subassembly, it includes the first elastic clamping jaw of adjustable clamping width, second clamping subassembly, it includes the second elastic clamping jaw of adjustable clamping width, first annular handle, including first stem and first circular ring part, second annular handle, including second stem and second circular ring part, first stem and second stem articulate through hinged part, form scissors formula open -and -shut structure to make first clamping subassembly and second clamping subassembly face or back to the movement. Through first clamping subassembly clamping syringe barrel, second clamping subassembly clamping push -and -pull rod tail, and the operator only needs to hold first annular handle and second annular handle drive scissors formula open -and -shut structure. The design forms the physical isolation path of hand, handle, buckle, syringe transmission in proper order, and completely blocks the pollution passage of hand microorganism through push -and -pull rod and passes into the liquid medicine, solves the problem of easy infection sample of the past.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and is particularly applicable to the aseptic operation scenario of syringes in the preparation of cell preparations. Specifically, it is a contamination-proof syringe holder that isolates hand contact through a mechanical structure. Background Technology

[0002] Cellular preparations, such as stem cell preparations and immune cell preparations, require a strictly sterile environment. Traditional cell preparation processes typically involve using a conventional syringe. A traditional syringe consists of a barrel and a plunger inserted into the barrel. The end of the plunger inserted into the barrel is called the tip, which is fixed with a rubber piston. The tail end of the plunger forms a circular push plate. The use of plunger syringes has three major drawbacks: First, there is a risk of contamination, as frequent hand contact with the plunger allows microorganisms to enter the drug solution. Second, there is operational inefficiency, as repeatedly pulling the same syringe can lead to fatigue. Third, there are cost issues; automated equipment is prohibitively expensive, and sterile kits are costly.

[0003] Existing syringe holders generally only solve the problem of shaking and cannot prevent hand contact. While continuous syringes for animal vaccines can solve the problem of hand contact, they have sterilization defects. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a syringe holder with a simple structure and low cost, which completely blocks the contamination path by replacing the direct hand operation of the push-pull rod through mechanical transmission.

[0005] To address the aforementioned technical problems, this utility model discloses a syringe holder for preventing contamination, comprising a first clamping assembly for clamping the graduated area of ​​the syringe barrel, which includes a first elastic gripper with adjustable clamping width; a second clamping assembly for clamping the tail end of the syringe push-pull rod, which includes a second elastic gripper with adjustable clamping width; a first annular handle, including a first rod portion fixedly connected to the first clamping assembly and a first annular portion fixedly connected to the first rod portion; and a second annular handle, including a second rod portion fixedly connected to the second clamping assembly and a second annular portion fixedly connected to the second rod portion; the first rod portion and the second rod portion are hinged together by a hinge to form a scissor-type opening and closing structure, so that the first clamping assembly and the second clamping assembly can move in opposite directions or in opposite directions.

[0006] The first elastic gripper includes two symmetrically arranged first clamping parts, each of which is arranged in an arc shape. The bottoms of the two first clamping parts are fixedly connected so that a first opening for inserting the syringe barrel is formed between the tops of the two first clamping parts. Anti-slip pads are fixedly installed on the inner side of each first clamping part.

[0007] The second elastic gripper includes two symmetrically arranged second clamping parts, each of which is arranged in an arc shape. The bottoms of the two second clamping parts are fixed together so that a second opening for inserting the syringe barrel is formed between the tops of the two second clamping parts. Each of the second clamping parts has a clamping groove on its inner side that is opened along the length of the second clamping part. The clamping groove is used for the insertion of the circular push plate at the end of the push-pull rod.

[0008] Both the first and second elastic grippers are made of medical-grade plastic.

[0009] The hinge is a pivot or a rivet, and both the first and second rods have hinge holes for the hinge to pass through.

[0010] The outer surfaces of the first and second annular portions are both provided with silicone layers.

[0011] The outer surface of the silicone layer has anti-slip textures.

[0012] The first clamping component and the first ring handle are integrally formed.

[0013] The second clamping component and the second ring handle are integrally formed.

[0014] Compared with the prior art, the embodiments of this utility model have the following beneficial effects: (1) The syringe barrel is held by the first clamping component and the end of the push-pull rod is held by the second clamping component. The operator only needs to hold the first and second ring handles to drive the scissor-type opening and closing structure. This design forms a physical isolation path for the hand, handle, buckle and syringe to be passed in sequence, completely blocking the contamination channel for hand microorganisms to enter the liquid through the push-pull rod, solving the problem of easy sample infection in the past, and forming a zero-contact anti-contamination mechanism.

[0015] (2) The scissor-like opening and closing structure formed by the hinge converts the gripping force of the handle into the linear motion of the push-pull rod, which saves effort and is especially suitable for the repeated aspiration steps in the preparation of cell preparations. It has the advantages of convenient operation and stability.

[0016] (3) The adjustable width design of the first elastic gripper and the second elastic gripper can adapt to different sizes through elastic deformation, making the support compatible with 50ml and other sizes of syringes. It can be applied to a variety of experimental scenarios without replacing parts, and has wide compatibility and adjustment flexibility.

[0017] (4) In other embodiments, the gripper opening design supports syringe disassembly and assembly in seconds, simplifying the operation process. The pure mechanical component structure does not require motors or circuits, making the manufacturing cost only 1%-5% of that of automated equipment, and there is no maintenance requirement. The whole can be soaked in alcohol or ultraviolet light for sterilization, meeting the high-frequency sterilization requirements of cell preparation. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments 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.

[0019] Figure 1 This is a schematic diagram of the syringe holder in this utility model; Figure 2 This is an exploded view of the syringe holder in this utility model. Detailed Implementation

[0020] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] The terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, apparatus, product, or end that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or ends.

[0022] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0023] This utility model discloses a specific embodiment of a syringe holder for preventing contamination. Please see [link to relevant documentation]. Figures 1 to 2 The anti-contamination syringe holder adopts a scissor-type mechanical transmission design and is made entirely of medical-grade plastic or metal. The medical-grade plastic is compatible with gamma ray sterilization, meets the GMP environmental requirements for cell preparations, and has a lifespan of over 500 sterilization cycles. The syringe holder includes two core clamping components and a linkage mechanism. Specifically, the syringe holder includes a first clamping component 1, a second clamping component 2, a first annular handle 3, a second annular handle 4, and a hinge.

[0024] As an improvement, the first clamping assembly 1 is mainly used to clamp the scale area of ​​the syringe barrel, and it includes a first elastic gripper with an adjustable clamping width. Specifically, the first elastic gripper includes two symmetrically arranged first clamping parts 11 in an arc shape. The bottoms of the two first clamping parts 11 are fixedly connected so that a first opening for insertion of the syringe barrel is formed between the tops of the two first clamping parts 11. This can be understood as forming a U-shaped structure with a top opening. The width of the opening is adaptively adjusted by a built-in elastic mechanism to ensure compatibility with syringe barrels of different sizes, such as 50mL. A silicone anti-slip pad 12 is fixedly installed on the inner side of the first clamping part 11, which not only enhances friction to prevent the syringe from sliding, but also avoids scratching the scale on the barrel. The silicone anti-slip pad 12 prevents the barrel from rotating, ensuring the visibility of the scale.

[0025] In this embodiment, the second clamping assembly 2 is designed for the tail end of the syringe push-pull rod. The second clamping assembly 2 is used to clamp the tail end of the syringe push-pull rod and includes a second elastic gripper with an adjustable clamping width. Specifically, the second elastic gripper includes two symmetrically arranged, arc-shaped second clamping portions 21. The bottoms of the two second clamping portions 21 are fixedly connected, forming a second opening between the tops of the two second clamping portions 21 for the insertion of the circular push plate at the end of the syringe push-pull rod. This can be understood as forming a U-shaped structure with a top opening. The opening width is adaptively adjusted through a built-in elastic mechanism to ensure compatibility with the circular push plates at the ends of different specifications of the push rod, such as 50mL. The inner surfaces of each second clamping portion 21 are provided with clamping grooves 22 extending along the length of the second clamping portion 21. The clamping grooves 22 are used for the insertion of the circular push-pull portion at the tail end of the push-pull rod. The depth of the groove matches the thickness of the push plate to prevent dislodgement during operation.

[0026] In this embodiment, the first annular handle 3 includes a first rod portion 31 fixedly connected to the first clamping assembly 1 and a first circular portion 32 fixedly connected to the first rod portion 31, while the second annular handle 4 includes a second rod portion 41 fixedly connected to the second clamping assembly 2 and a second circular portion 42 fixedly connected to the second rod portion 41. The first rod portion 31 and the second rod portion 41 are hinged together by a hinge member to form a scissor-type opening and closing structure, so that the first clamping assembly 1 and the second clamping assembly 2 can move in opposite directions or in opposite directions. Specifically, the hinge member is a pivot 5 or a rivet, and both the first rod portion 31 and the second rod portion 41 are provided with hinge holes 51 for the hinge member to pass through.

[0027] It should be noted that the first clamping assembly 1 and the first annular handle 3 can be integrally molded, and similarly, the second clamping assembly 2 and the second annular handle 4 can be integrally molded. The symmetrical arc clamping part and the retaining groove 22 form a three-point positioning to ensure that the syringe does not wobble.

[0028] The handle transmission mechanism employs an X-shaped hinge structure for force transmission: the first rod 31 and the second rod 41 intersect at the center point and are hinged via a stainless steel pivot 5 or rivets, forming a force-saving lever. A first ring 32 and a second ring 42 extend from either side of the hinge point: the first handle connects to the end of the rod on the cylinder's latch side, forming a 30mm diameter ring structure for thumb insertion; the second handle connects to the end of the rod on the push-pull rod's latch side, forming a 50mm diameter ring structure suitable for four-finger grip. Both ring handles are covered with a silicone layer, with a diamond-shaped anti-slip texture pressed onto the surface to enhance grip stability and reduce hand fatigue. The anti-slip coefficient in wet operation is >0.8 (ISO standard), preventing spillage of pharmaceutical preparations due to gloves slipping inside the biosafety cabinet.

[0029] The operation procedure and anti-contamination mechanism of the syringe holder in this embodiment are as follows.

[0030] Installation phase: Align the scale area of ​​the syringe barrel with the U-shaped opening of the first clamping component 1 and press down. The elastic gripper will automatically clamp the barrel. The push plate at the end of the push rod slides laterally into the retaining groove 22 of the second clamping component 2 to complete the fixation.

[0031] Aspiration operation: Insert four fingers into the second ring handle 4 and the thumb into the first ring handle 3, apply force to the palm to drive the hinge to close, and drive the push-pull rod to advance the injection; unfold the handle in the opposite direction to pull the push-pull rod to aspirate the liquid.

[0032] Disinfection and maintenance: After use, immerse directly in 75% alcohol or place in a UV sterilizer. The medical-grade plastic material (or metal + silicone) is resistant to chemical and biological disinfection.

[0033] In this embodiment, the syringe uses a first clamping component 1 to hold the syringe barrel and a second clamping component 2 to hold the end of the push-pull rod. The operator only needs to hold the first ring handle 3 and the second ring handle 4 to drive the scissor-like opening and closing structure. This design creates a physical isolation path through the hand, handle, buckle, and syringe, completely blocking the contamination channel for microorganisms on the hand to enter the liquid through the push-pull rod, solving the problem of easy sample infection in the past and forming a zero-contact anti-contamination mechanism. The scissor-like opening and closing structure formed by the hinge converts the gripping force of the handle into the linear movement of the push-pull rod, making operation effortless. It is particularly suitable for steps requiring repeated aspiration in cell preparation, providing ease of operation and stability. The adjustable width design of the first and second elastic grippers allows them to adapt to different sizes through elastic deformation, making the holder compatible with 50ml and other sizes of syringes. It can be applied to various experimental scenarios without changing parts, providing wide compatibility and adjustment flexibility. In other embodiments, the gripper opening design supports syringe disassembly and assembly in seconds, simplifying the operation process. The purely mechanical component structure requires no motor or circuit, making the manufacturing cost only 1%-5% of that of automated equipment, and requiring no maintenance. The entire assembly can be immersed in alcohol or ultraviolet light for sterilization, meeting the high-frequency sterilization requirements of cell preparation.

[0034] Finally, it should be noted that the anti-pollution syringe holder disclosed in this utility model embodiment is only a preferred embodiment of this utility model and is only used to illustrate the technical solution of this utility model, not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of this utility model.

Claims

1. A syringe holder for preventing contamination, characterized in that, include: A first clamping assembly for clamping a graduated area of ​​a syringe barrel includes a first resilient gripper with an adjustable clamping width. The second clamping assembly for clamping the tail end of the syringe push rod includes a second resilient gripper with an adjustable clamping width. The first annular handle includes a first rod portion fixedly connected to the first clamping assembly and a first annular portion fixedly connected to the first rod portion; The second ring handle includes a second rod portion fixedly connected to the second clamping assembly and a second ring portion fixedly connected to the second rod portion; The first rod and the second rod are hinged together to form a scissor-type opening and closing structure, so that the first clamping assembly and the second clamping assembly can move towards or away from each other.

2. The anti-pollution syringe holder according to claim 1, characterized in that, The first elastic gripper includes two symmetrically arranged first clamping parts, each of which is arc-shaped. The bottoms of the two first clamping parts are fixed together so that a first opening for inserting the syringe barrel is formed between the tops of the two first clamping parts. Anti-slip pads are fixedly installed on the inner side of each of the first clamping parts.

3. The syringe holder for pollution prevention according to claim 2, characterized in that, The second elastic gripper includes two symmetrically arranged second clamping parts, each of which is arc-shaped. The bottoms of the two second clamping parts are fixed together so that a second opening for inserting the syringe barrel is formed between the tops of the two second clamping parts. Each of the second clamping parts has a clamping groove on its inner side, which is opened along the length direction of the second clamping part. The clamping groove is used for the insertion of the circular push plate at the tail end of the push-pull rod.

4. A syringe holder for preventing contamination according to claim 3, characterized in that, Both the first and second elastic grippers are made of medical-grade plastic.

5. A syringe holder for preventing contamination according to claim 1, characterized in that, The hinge is a pivot or a rivet, and both the first rod and the second rod have hinge holes through which the hinge passes.

6. A syringe holder for preventing contamination according to claim 1, characterized in that, Both the outer surfaces of the first and second annular portions are provided with silicone layers.

7. A syringe holder for preventing contamination according to claim 6, characterized in that, The outer surface of the silicone layer is provided with anti-slip texture.

8. A syringe holder for preventing contamination according to claim 1, characterized in that, The first clamping component and the first ring handle are integrally formed.

9. A syringe holder for preventing contamination according to claim 1, characterized in that, The second clamping component and the second ring handle are integrally formed.

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