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Silicone oil free prefilled syringe

A pre-filled syringe, silicone oil-free technology, applied in the field of medical devices, can solve problems such as restricting development momentum, and achieve the effect of avoiding liquid medicine residue and preventing silicone oil pollution

Inactive Publication Date: 2014-12-03
金富康 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the prefilled syringes on the market all adopt the structure of the original syringe. After prefilling with liquid, in order to ensure the smooth movement of the piston in the push seat, the rubber piston needs to be soaked with silicone oil, so that the injection contains a certain amount of silicone oil. Harmful substances that may be produced by medicines have restricted the development momentum of prefilled syringes replacing most of the packaging materials for aqueous medicines

Method used

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  • Silicone oil free prefilled syringe
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  • Silicone oil free prefilled syringe

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0035] Such as figure 1 As shown, the non-silicon oil prefilled syringe in this embodiment is composed of a medicine bottle and a Luer connector. The bottle body 2 of the medicine bottle is a corrugated retractable bottle body, and the bottleneck 1 is sealed with the cylindrical section 4 of the Luer connector. To connect, the Luer connector 5 of the Luer connector is connected to the needle. When injecting, manually press the bottom 3 of the medicine bottle, and compress the medicine in the bottle through the bottle body 2 to make the medicine flow out of the syringe through the small hole connected to the bottleneck 1 and the cylindrical section 4 to reach the needle to complete the injection. In order to make the medicine in the medicine bottle There can be no residue as much as possible, and a raised cylinder is built into the bottom of the bottle 3 to avoid the residue of the medicine. figure 2 Schematic diagram of the structure of the vial and Luer connector.

[0036]...

Embodiment approach 2

[0039] This embodiment is a further improvement of Embodiment 1. The main improvement is that, in order to facilitate the injection, the push head 8 of the push rod is fixedly connected to the bottom 3 of the medicine bottle, such as Figure 5 As shown, the push seat 6 is also arranged outside the medicine bottle, the bottle neck 1 of the medicine bottle is located at the front opening of the push seat 6 (the opening can be designed as a waist-shaped hole), and the Luer connector passes through the front end opening of the push seat 6 and is fixed to the push seat 6 Connection; In this embodiment, the connection between the Luer connector and the push seat 6 is by setting a groove 19 on the cylindrical section 4 of the Luer connector, and setting a first groove that can be fixedly connected with the groove 19 at the front end of the push seat 6. The two card slots 20 are realized, and in a specific embodiment, they can also be connected in other ways. In order to implement the...

Embodiment approach 3

[0041] This embodiment is a further improvement on the basis of Embodiment 2. In this embodiment, the main improvement is: in order to prevent the push rod 7 of the push rod from driving the push head 8 to compress the liquid medicine bottle, the pressure inside the liquid medicine bottle becomes larger, resulting in The bottle body 2 rebound of the water bottle causes the potion to flow back, such as Figure 6 , 7 , 8, and 9, in this embodiment, a plurality of first toothed grooves 9 are provided on the inner wall of the push seat 6, and a first card groove 10 used in conjunction with the first toothed grooves 9 is provided on the edge of the push head. A draw-in slot 10 is also provided with positioning teeth 11, so that the positioning teeth 11 engage with the first toothed groove 9 after the pushing head 8 advances a little distance, thereby preventing the liquid medicine bottle from rebounding and causing liquid medicine backflow and blood return phenomenon to occur. Fi...

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Abstract

The invention relates to the field of medical devices and provides a silicone oil free prefilled syringe. The silicone oil free prefilled syringe comprises a vial and a luer; the vial is composed of a vial neck, a corrugated vial body capable of retracting freely and a vial bottom internally provided with a protrusion column; one end of the luer is provided with a cylindrical section, the other end is provided with a luer connector, and the luer is fixedly connected with the vial neck in a seal mode through the cylindrical section. Compared with the prior art, the silicone oil free prefilled syringe can avoid contamination of silicone oil or other lubricant to liquid medicine and smoothly complete the injection.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a silicone oil-free prefilled syringe. Background technique [0002] At present, the prefilled syringes on the market all adopt the structure of the original syringe. After prefilling with liquid, in order to ensure the smooth movement of the piston in the push seat, the rubber piston needs to be soaked with silicone oil, so that the injection contains a certain amount of silicone oil. The harmful substances that may be produced by the medicine have restricted the development momentum of prefilled syringes replacing most of the packaging materials of aqueous medicines. Contents of the invention [0003] Purpose of the invention: In order to solve the problems existing in the prior art, the present invention provides a silicone oil-free prefilled syringe, which can avoid silicone oil from contaminating the potion and successfully complete the injection. [0004] Technical solutio...

Claims

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Application Information

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IPC IPC(8): A61M5/178A61M5/31
Inventor 金富康
Owner 金富康
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