A reagent bottle
By using a connecting cap, Luer cap, and silicone gasket design for the reagent bottle, combined with threaded connections and polydimethylsiloxane coating, the problems of reagent bottle residue and sealing are solved, achieving efficient reagent preservation and multiple uses.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG JUNXIU BIOTECHNOLOGY CO LTD
- Filing Date
- 2025-06-16
- Publication Date
- 2026-07-03
AI Technical Summary
Existing reagent bottles have problems with reagent residue and spillage during use, insufficient sealing leading to evaporation and leakage, and are not convenient for precise measurement and multiple uses.
A reagent bottle was designed using a combination of a connecting cap and a Luer cap, combined with a silicone pad and a polydimethylsiloxane coating. Triple sealing is achieved through a threaded connection. The silicone pad has a funnel-shaped structure for easy pouring, and the Luer connector connects to a pre-filled syringe to prevent residue and leakage.
It achieves efficient sealing of reagents, reduces residue and volatilization, facilitates multiple uses, and is suitable for the storage and transportation of corrosive and high-purity liquids.
Smart Images
Figure CN224443068U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of experimental equipment technology, specifically relating to a reagent bottle. Background Technology
[0002] For corrosive, high-purity, or expensive liquids requiring precise measurement, storage containers have extremely high requirements. Commercially available reagent bottles have the following problems: First, during operation, when all the reagent is poured out of the bottle, reagent residue often remains on the inner wall, while some liquid spills from the bottle opening, leading to inaccurate measurement, reagent waste, and contamination. Second, during transportation or storage, improper sealing of the bottle opening can cause reagent evaporation and leakage. While smaller openings are easier to seal, they are not conducive to dispensing reagent in multiple stages. Summary of the Invention
[0003] In view of the current state of technology, the purpose of this utility model is to provide a reagent bottle.
[0004] To achieve the above objectives, the technical solution of this utility model is as follows:
[0005] A reagent bottle includes a bottle body, a connecting cap, and a Luer cap;
[0006] The bottle mouth of the bottle body is connected to the large opening of the connecting cap; a Luer connector is provided on the side of the connecting cap away from the bottle mouth, and the Luer connector is connected to the Luer cap; a silicone pad is provided between the bottle body and the connecting cap, and a polydimethylsiloxane coating is provided at the contact position between the bottle body and the silicone pad.
[0007] Optionally, the bottle body is made of polypropylene (PP), polyethylene (PE), polytetrafluoroethylene (PTFE), or medium-high borosilicate glass, and the entire surface of the bottle body is coated with a polydimethylsiloxane coating.
[0008] Optionally, the connecting cap is connected to the bottle opening by means of a thread.
[0009] Optionally, the Luer connector and the Luer cover are connected by threads.
[0010] Optionally, the aperture of the Luer connector is smaller than the aperture of the bottle mouth.
[0011] Optionally, the silicone pad has a through hole that connects the bottle opening and the Luer connector.
[0012] Optionally, the material surface between the large opening of the connecting cover and the Luer connector is covered with a silicone pad.
[0013] Optionally, the outer diameter of the Luer cover is the same as that of the connecting cover.
[0014] Optionally, the outer sides of the Luer cover and the connecting cover are respectively provided with raised ridges.
[0015] Optionally, the connecting cap and Luer cap can be made of polypropylene (PP) or ABS resin (acrylonitrile-styrene-butadiene copolymer, ABS).
[0016] The beneficial effects of this utility model are as follows:
[0017] This invention relates to a reagent bottle equipped with a connecting cap and a Luer cap. The connecting cap is used to seal the larger bottle opening, while the Luer cap seals the connecting cap. The bottle opening is used to inject reagents into the bottle. The Luer connector can be connected to a pre-filled syringe to prevent reagent waste during dispensing. A conical silicone pad, resembling a funnel, facilitates reagent pouring or aspiration when the bottle is inverted, preventing reagent residue on the inner side of the bottle shoulder and improving the sealing at the bottle opening. The entire bottle is connected by threads, and a triple-seal design (including a double seal with the Luer cap and connecting cap, a silicone pad seal, and a threaded connection seal) ensures a complete seal. A polydimethylsiloxane coating reduces reagent residue at the bottle opening and body. This technical solution offers advantages such as convenient preparation and transportation, and allows for multiple dispensings of reagents directly using a needleless pre-filled syringe. Attached Figure Description
[0018] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.
[0019] Figure 1 This is a schematic diagram of the reagent bottle in Example 1.
[0020] Figure 2 This is a schematic diagram of the structure of Luger in Example 1.
[0021] Figure 3 This is a schematic diagram of the connecting cover in Example 1.
[0022] Figure 4 This is a schematic diagram of the structure of the silicone pad in Example 1.
[0023] Figure 5 This is a schematic diagram showing the connection relationship between the silicone pad, connecting cap, and Luer cap in Example 1.
[0024] The components include: 1. Bottle body; 2. Connecting cap; 21. Wide opening; 22. Luer connector; 3. Luer cap; 4. Protrusion; 5. Silicone pad. Detailed Implementation
[0025] Example 1
[0026] A reagent bottle such as Figure 1 As shown, it includes bottle body 1, connecting cap 2 and Luer cap 3;
[0027] The bottle mouth of bottle 1 and as shown Figure 3 The connecting cap 2 shown is connected to the large opening 21; a Luer connector 22 is provided on the side of the connecting cap 2 away from the bottle opening, and the Luer connector 22 is connected to... Figure 2 The Luer cap 3 is shown as a connection; a connection is provided between the bottle body and the connecting cap 2 as shown. Figure 4 The silicone pad 5 shown has a polydimethylsiloxane (PDMS) coating at the contact point between the bottle body and the silicone pad 5.
[0028] In the above structure, the silicone pad 5 is sealed by abutting against the polydimethylsiloxane coating of the bottle body, and the reagent residue at the bottle opening is reduced; the polydimethylsiloxane coating is hydrophobic, which can prevent reagent residue from remaining on the dimethylsiloxane coating of the bottle body, or prevent reagent from seeping in along the gap between the polydimethylsiloxane coating and the silicone pad 5.
[0029] Bottle 1 is made of PP, PE, PTFE or medium-high borosilicate glass. The entire surface of the bottle is coated with a polydimethylsiloxane film with a thickness of 0.1~1μm to reduce reagent residue on the bottle.
[0030] The cap 2 is connected to the bottle mouth by a thread to increase the seal.
[0031] like Figure 3 As shown, the outer side of the Luer connector 22 is provided with external threads; as Figure 2 As shown, the Luer cap has a protrusion 4 structure, and the rigid structure around the protrusion 4 structure has internal threads, enabling the Luer connector 22 and the Luer cap 3 to be connected by threads; the Luer cap 3 is used to seal the Luer connector 22. When the Luer cap 3 and the Luer connector 22 are connected by threads, as shown... Figure 5 As shown, the protrusion 4 structure is pressed together with the internal silicone pad 5 (abutting or inserted into the upper opening of the silicone pad 5 in a compressed state) to reduce reagent residue at the Luer connector port, and to play a sealing and fixing role.
[0032] The 4-protrusion structure is made of PP or ABS resin and is fused together with the Luer connector.
[0033] The orifice of the Luer connector 22 is smaller than the diameter of the bottle opening to reduce reagent leakage during dispensing.
[0034] The silicone pad 5 has a through hole that connects the bottle mouth and the Luer connector 22, so that the reagent does not come into contact with the inner wall of the connecting cap 2 when dispensing the liquid, thus reducing reagent residue.
[0035] like Figure 5As shown, the material surface between the large opening of the connecting cap 2 and the Luer connector 3 is covered by a silicone pad 5. The outer contour of the silicone pad 5 is consistent with the inner contour of the connecting cap 2, which improves the sealing performance. When the connecting cap 2 and the bottle body 1 are tightened by threads, the inner silicone pad 5 contacts and is squeezed against the bottle opening of the bottle body 1, thus sealing the bottle opening. When the Luer cap 3 and the connecting cap 2 are tightened together, the external thread of the Luer connector 22 engages with the internal thread of the Luer cap 3, and the protrusion 4 structure can abut against or extend into the upper opening of the silicone pad 5 to close it, thus sealing the internal space of the bottle and fixing the protrusion 4 structure. In this state, the reagent inside the bottle can only contact the material of the bottle body 1, the silicone pad 5 and the protrusion 4, and will not contact the material outside the connecting cap 2 and the Luer cap, thus achieving a sealed state of the internal space of the bottle.
[0036] The outer diameter of Luergai 3 is the same as that of the connecting cover 2, making it easy to grip.
[0037] Correspondingly, the outer sides of the Luer cover 3 and the connecting cover 2 are respectively provided with raised ridges to facilitate twisting.
[0038] Reagent bottles can store reagents including acidic liquid reagents, alkaline liquid reagents, or powders; specifically including: inorganic acid solutions, such as dilute hydrochloric acid solution, dilute sulfuric acid solution, nitric acid solution, or phosphoric acid solution; organic acid solutions, such as acetic acid solution, citric acid solution, or formic acid solution; inorganic base solutions, such as sodium hydroxide solution, potassium hydroxide solution, or ammonia water; organic base solutions, such as triethylamine solution, pyridine solution, or polyethyleneimine solution; inorganic acidic powders, such as boric acid powder, oxalic acid powder, or tartaric acid powder; organic acidic powders, such as ascorbic acid powder, citric acid powder, or acidic reactive ester powder; inorganic base powders, such as sodium hydroxide powder, potassium hydroxide powder, sodium carbonate powder, or sodium bicarbonate powder; and organic base powders, such as triethanolamine powder. The concentration or chemical properties of the stored reagents do not react with the components of the reagent bottle that come into contact with them.
[0039] The instructions for using reagent bottles include:
[0040] The bottle cap assembly steps include: tightening the connecting cap 2 with silicone pad 5 and Luer cap 3 to form a complete bottle cap; filling the bottle with reagent from the bottle body 1 opening as required; and tightening the assembled bottle cap to the reagent bottle opening to secure it.
[0041] When the stored reagent is liquid, first unscrew the Luer cap 3, take the syringe with the Luer connector, and tighten it with the Luer connector 22 on the connecting cap through the thread; completely draw the reagent back into the syringe; unscrew the syringe, and you can proceed with subsequent operations; the polydimethylsiloxane coating can reduce liquid residue at the bottle mouth and bottle body, and the conical silicone pad 5 can collect the liquid reagent to the port. When the Luer cap 3 is tightened, the protrusion 4 structure can squeeze the reagent at the Luer cap position back into the sealed space formed by the bottle body 1, silicone pad 5 and protrusion 4, preventing reagent waste.
[0042] When the reagent being stored is a powder, unscrew the Luer cap 3 and pour the powder directly from the Luer connector 22; or unscrew the Luer cap 3, inject an appropriate amount of solvent into the bottle through the Luer connector 22 to dissolve the powder, and then proceed with the subsequent operations according to the liquid handling method to take the solution formed by the powder reagent in the bottle 1; an effective sealing method can provide a storage environment for hygroscopic powders.
[0043] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A reagent bottle characterized by, The device includes a bottle body, a connecting cap, and a Luer cap; the bottle mouth of the bottle body is connected to the large opening of the connecting cap; a Luer connector is provided on the side of the connecting cap away from the bottle mouth, and the Luer connector is connected to the Luer cap; a silicone pad is provided between the bottle body and the connecting cap, and a polydimethylsiloxane coating is provided at the contact position between the bottle body and the silicone pad.
2. The reagent bottle of claim 1, wherein, The bottle body is made of PP, PE, PTFE or medium-high borosilicate glass, and the entire surface of the bottle body is coated with a polydimethylsiloxane film.
3. The reagent bottle of claim 1, wherein, The connecting cap is connected to the bottle opening by a thread.
4. The reagent bottle of claim 1, wherein, The Luer connector and the Luer cover are connected by threads.
5. The reagent bottle of claim 1, wherein, The aperture of the Luer connector is smaller than the aperture of the bottle mouth.
6. The reagent bottle as described in claim 1, characterized in that, The silicone pad has a through hole, which connects the bottle opening and the Luer connector.
7. The reagent bottle of claim 6, wherein The material surface between the large opening of the connecting cover and the Luer connector is covered with a silicone pad.
8. The reagent bottle of claim 1, wherein, The outer diameter of the Luer cover is the same as that of the connecting cover.
9. The reagent bottle of claim 1, wherein, The outer sides of the Luer cover and the connecting cover are respectively provided with raised ridges.
10. The reagent bottle of claim 1, wherein, The connecting cap and Luer cap are made of polypropylene or ABS resin.