# US 11,110,033 B2 · Integrated structure of preparation syringe

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- Number: US 11,110,033 B2
- Document ID: US11110033B2
- Status: Granted
- Kind: B2
- Application number: 16/303,656
- Filed: 2017-12-26
- Published: 2020-03-26
- Granted: 2021-09-07
- Earliest claimed: 2017-12-25
- Assignees: Jiangnan University
- Applicants: Jiangnan University
- Inventors: Yuyu Qiu; Jun Wang; Shufang Xia; Yuyu Jiang
- Web page: https://patentgrep.com/patent/US11110033B2

## CPC

- A61J 1/2096: {Combination of a vial and a syringe for transferring or mixing their contents}
- A61J 1/22: with means for metering the amount of fluid
- A61J 1/1406: {Septums, pierceable membranes}
- A61J 1/18: Arrangements for indicating condition of container contents, e.g. sterile condition
- A61J 1/201: {having one piercing end}
- A61J 1/2041: {having removable plugs}
- A61M 5/178: Syringes
- A61M 5/288: {by piercing without internal pressure increase (A61M5/283 takes precedence)}
- A61M 5/31: Details
- A61M 5/3129: {Syringe barrels (A61M5/3205, A61M5/50 take precedence)}
- A61M 5/315: Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod {or piston}; Appliances on the rod for facilitating dosing {; Dosing mechanisms}
- A61M 5/31501: {Means for blocking or restricting the movement of the rod or piston (A61M5/5013 takes precedence)}
- A61M 5/31511: {Piston or piston-rod constructions, e.g. connection of piston with piston-rod (A61M5/5066 takes precedence)}
- A61M 5/345: {Adaptors positioned between needle hub and syringe nozzle}
- A61J 2205/50: using icons or symbolic figures, e.g. by a graphical representation symbolising the type of pathology or the organ by an image
- A61M 2005/31518: {designed to reduce the overall size of an injection device, e.g. using flexible or pivotally connected chain-like rod members}
- A61J: CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
- A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)}

## Abstract

An integrated structure of a preparation syringe includes a stretchable piston, a barrel, a needle, an exposed rubber plug, a sealing sheet, a built-in rubber plug, a sealing rubber plug and an engaging rubber plug. One end of the barrel is provided with the stretchable piston, and another end of the barrel is provided with a clamping column. The exposed rubber plug is provided on a side of the stretchable piston away from the barrel. The built-in rubber plug is provided within the barrel. A Scale mark is provided on a circumferential surface of the barrel. The sealing rubber plug is inlaid and sleeved on the clamping column. The sealing sheet is provided on a side of exposed tuber plug away from the barrel. A blunt end is provided at an end of the needle away form a needle tip. The engaging rubber plug is provided outside the blunt end.

## Claims

### Claim 1

A preparation syringe system, comprising a stretchable piston, a barrel, a needle, an exposed rubber plug, a first sealing sheet, a second sealing sheet, a built-in rubber plug, a sealing rubber plug, and an engaging rubber plug, wherein the stretchable piston, the barrel, the exposed rubber plug, the first sealing sheet, and the built-in rubber plug form an integrated structure,
wherein one end of the barrel is provided with the stretchable piston, another end of the barrel is provided with a clamping column, the exposed rubber plug is provided on a side of the stretchable piston away from the barrel, the built-in rubber plug is provided inside the barrel, a scale mark is provided on a circumferential surface of the barrel, the sealing rubber plug is removably inlaid and sleeved on the clamping column, the first sealing sheet is provided on a side of the exposed rubber plug away from the barrel, a blunt end is provided at an end of the needle away from a needle tip, and the engaging rubber plug is provided outside the blunt end,
wherein the second sealing sheet is provided outside the sealing rubber plug, when the second sealing sheet is revealed and the sealing rubber plug is removed from the clamping column of the barrel, the needle is able to be assembled on the integrated structure through the engaging rubber plug.

### Claim 2 (depends on 1)

The preparation syringe system according to claim 1, wherein the stretchable piston comprises a multi-layer hollow sleeve consisting of a plurality of hollow sleeves that are sequentially reduced in diameter, adjacent hollow sleeves are engaged with each other through a clamping groove and a protrusion, after an inner-layer hollow sleeve is pulled out of an outer-layer hollow sleeve and the protrusion is located in the clamping groove, the inner-layer hollow sleeve is fixed relative to the outer-layer hollow sleeve.

### Claim 3 (depends on 1)

The preparation syringe system according to claim 1, wherein the engaging rubber plug has an E-shaped structure in cross section.

### Claim 4 (depends on 1)

The preparation syringe system according to claim 1, wherein the needle is inlaid and sleeved on the clamping column through the engaging rubber plug.

### Claim 5 (depends on 1)

The preparation syringe system according to claim 1, wherein the first sealing sheet is provided outside the exposed rubber plug.

### Claim 6 (depends on 1)

The preparation syringe system according to claim 1, wherein a through-hole is provided inside the clamping column.