PLASTIC AMPULE

• US 20110031157A1
• Filed: 04/23/2009
• Published: 02/10/2011
• Est. Priority Date: 04/25/2008
• Status: Active Grant

• Current Assignee: Nippon Zoki Pharmaceutical Co., Ltd.
• Original Assignee: Nippon Zoki Pharmaceutical Co., Ltd.
• Inventors: Nishimura, Hideo, Nakano, Hideshi
• Granted Patent: US 8,640,873 B2
• Time in Patent Office: Days
• US Class Current: 206/532
• CPC Class Codes: A61J 1/067 Flexible ampoules, the contents of which are expelled by squeezing
• CPC Class Codes: B65D 1/0238 Integral frangible closures
• CPC Class Codes: B65D 1/095 made of flexible material

Abstract

A plastic ampule comprising a body portion, a head portion provided continuously to the mouth portion of the body portion through a cut-off portion, and a knob portion provided continuously to the head portion the ampule being unsealed by twisting the knob portion with fingers to cut the head portion off the mouth portion, wherein the hollow portion in the head portion is formed in the shape of a bowl. Since the hollow portion is formed in the shape of a bowl, content liquid remaining in the hollow portion can be discharged easily, the plastic ampule can be unsealed easily, and the content liquid remaining in the hollow portion is not scattered easily at the time of unsealing.

Claims

1. A plastic ampule comprising:

a body portion;

a head portion formed continuously to a mouth portion of the body portion via a cut-off portion; and

a knob portion formed continuously to the head portion, wherein

the plastic ampule is unsealed by twisting the knob portion and cutting the head portion off the mouth portion, and

a hollow portion in the head portion is formed to have a bowl shape.

2. The plastic ampule according to claim 1, wherein a part of the head portion formed continuously to the cut-off portion is formed to have a wall thickness thicker than the wall thickness of the cut-off portion.

3. The plastic ampule according to claim 2, wherein the part of the head portion formed continuously to the cut-off portion is formed to have a wall thickness 1.2 times to 1.8 times thicker than the wall thickness of the cut-off portion.

4. The plastic ampule according to claim 1, wherein

the hollow portion is formed to have a minimum vertical dimension of 3 mm to 10 mm, a maximum vertical dimension of 4 mm to 13 mm, and a maximum horizontal dimension of 8 mm to 12 mm, and

an opening portion formed on the head portion when the head portion is cut off from the mouth portion is formed to have an inner diameter of 4 mm to 7 mm.

5. The plastic ampule according to claim 1, wherein

the hollow portion is formed to have a minimum vertical dimension of 4 mm to 10 mm, a maximum vertical dimension of 5 mm to 13 mm, and a maximum horizontal dimension of 9 mm to 11 mm, and

an opening portion formed on the head portion when the head portion is cut off from the mouth portion is formed to have an inner diameter of 5 mm to 6 mm.

6. The plastic ampule according to claim 1, wherein the plastic ampule is manufactured by a blow-fill-seal method.

13. The plastic ampule or the plastic ampule filled with a drug solution according to claim 6, wherein a plastic ampule block is formed by continuously forming a plurality of the plastic ampules via a thin-wall portion for division.

7. A plastic ampule filled with a drug solution comprising:

a body portion;

a head portion formed continuously to a mouth portion of the body portion via a cut-off portion; and

a knob portion formed continuously to the head portion, wherein

the plastic ampule is unsealed by twisting the knob portion and cutting the head portion off from the mouth portion, and

a hollow portion in the head portion is formed to have a bowl shape.

8. The plastic ampule filled with a drug solution according to claim 7, wherein a part of the head portion formed continuously to the cut-off portion is formed to have a wall thickness thicker than the wall thickness of the cut-off portion.

9. The plastic ampule filled with a drug solution according to claim 8, wherein the part of the head portion formed continuously to the cut-off portion is formed to have a wall thickness 1.2 times to 1.8 times thicker than the wall thickness of the cut-off portion.

10. The plastic ampule filled with a drug solution according to claim 7, wherein

the hollow portion is formed to have a minimum vertical dimension of 3 mm to 10 mm, a maximum vertical dimension of 4 mm to 13 mm, and a maximum horizontal dimension of 8 mm to 12 mm, and

an opening portion formed on the head portion when the head portion is cut off from the mouth portion is formed to have an inner diameter of 4 mm to 7 mm.

11. The plastic ampule filled with a drug solution according to claim 7, wherein

the hollow portion is formed to have a minimum vertical dimension of 4 mm to 10 mm, a maximum vertical dimension of 5 mm to 13 mm, and a maximum horizontal dimension of 9 mm to 11 mm, and

an opening portion formed on the head portion when the head portion is cut off from the mouth portion is formed to have an inner diameter of 5 mm to 6 mm.

12. The plastic ampule filled with a drug solution according to claim 7, wherein the plastic ampule is manufactured by a blow-fill-seal method.