Medical liquid container and preparation-containing medical liquid container

• US 7,789,852 B2
• Filed: 11/25/2005
• Issued: 09/07/2010
• Est. Priority Date: 11/26/2004
• Status: Active Grant

• Current Assignee: Hosokawa Yoko Co., Ltd.
• Original Assignee: Hosokawa Yoko Co., Ltd.
• Inventors: Nakamura, Manabu, Yoshikawa, Katsuyuki
• Primary Examiner(s): Lucchesi; Nicholas D
• Assistant Examiner(s): LANDRY II, GERALD ERNEST
• Application Number:
  US11/791,372
• Publication Number:
  US 20070299391A1
• Time in Patent Office: 1,747 Days
• Field of Search: 604/82, 604/80, 604/81, 604 83- 92, 383 48- 50
• US Class Current: 604/80
• CPC Class Codes: A61J 1/00 Containers specially adapted for medical or pharmaceutical purposes capsules or the like for oral use A61J3/07; specially adapted for surgical or diagnostic appliances or instruments A61B50/30; containers for radioactive substances G21F5/00
• CPC Class Codes: A61J 1/10 Bag-type containers
• CPC Class Codes: A61J 1/2024 having peelable seals
• CPC Class Codes: A61J 1/2093 Containers having several compartments for products to be mixed

Abstract

To provide a medical liquid container which is free from sealing failure in the seal portion at the peripheral edge of the liquid medicament-housing chamber and also free from deterioration of a medicament housed in a small amount; and a preparation-containing medical liquid container. A secondary liquid medicament-housing chamber 12 is connected to one end of a primary liquid medicament-housing chamber 11. This secondary liquid medicament-housing chamber 12 is unseparably fixed to the primary liquid medicament-housing chamber 11 at a connection part 14. The secondary liquid medicament-housing chamber 12 has a bulge part 15 bulged such that the internal medicament-housing space before housing a second medicament is larger than the volume of the housed second medicament.

Claims

1. A medical liquid container having a primary liquid medicament-housing chamber for housing a medicament and at least one secondary liquid medicament-housing chamber for housing a liquid medicament smaller in the amount than the liquid medicament housed in the primary liquid medicament-housing chamber, which is connected to the primary liquid medicament-housing chamber, an inside of the primary liquid medicament-housing chamber and an inside of the secondary liquid medicament-housing chamber being communicatably divided, wherein said secondary liquid medicament-housing chamber has a bulge part bulged such that the internal medicament-housing space before housing a medicament is larger than the volume of the housed medicament,

the secondary liquid medicament-housing chamber is liquid tightly sealed, and communicatably divided from the primary liquid medicament-housing chamber,

the liquidtight seal is formed at the outside of the primary liquid medicament-housing chamber,

the end part of the secondary liquid medicament-housing chamber is inserted into the primary liquid medicament-housing chamber and heat-sealed, and

the primary and secondary liquid medicament-housing chambers are made of a sheet material having a multilayer structure in which a heat sealing temperature at a joining of the outer face of the secondary liquid medicament-housing chamber with the inner face of the primary liquid medicament-housing chamber is lower than a melt-bonding temperature of inner faces of the secondary liquid medicament-housing chamber with each other.

2. The medical liquid container as claimed in claim 1, wherein the primary liquid medicament-housing chamber is formed by a flexible sheet material.

3. The medical liquid container as claimed in claim 1, wherein said bulge part comprises two sheet members and a separation member separating said two sheet members from each other to form a space and being housed in said secondary liquid medicament-housing chamber.

4. The medical liquid container as claimed in claim 1, wherein said bulge part is formed by cold stretching or heat stretching of a sheet member.

5. The medical liquid container as claimed in claim 1, wherein said secondary liquid medicament-housing chamber is a blow-molded article.

6. The medical liquid container as claimed in claim 1, wherein said primary liquid medicament-housing chamber comprises a plurality of housing chambers divided by a separable liquid tight seal.

7. A preparation-containing medical liquid container housing a medicament in the medical liquid container claimed in claim 1, wherein the medicament is housed in each of the primary liquid medicament-housing chamber and the secondary liquid medicament-housing chamber of the medical liquid container.

8. The preparation-containing medical liquid container as claimed in claim 7, wherein said secondary liquid medicament-housing chamber comprises a preparation-containing secondary liquid medicament-housing chamber produced by a method of continuously performing formation of a chamber by blow molding, housing of a medicament and sealing of the chamber.

9. The preparation-containing medical liquid container as claimed in claim 7, wherein a medicament containing any one or more of a sugar, an electrolyte and an amino acid is housed in the primary liquid medicament-housing chamber and a medicament containing any one or more of a water-soluble vitamin, a fat-soluble vitamin and a trace element is housed in the secondary liquid medicament-housing chamber.

10. The preparation-containing medical liquid container as claimed in claim 7, wherein a medicament containing at least one of a water-soluble vitamin, a fat-soluble vitamin, and a trace element is housed in the secondary liquid medicament-housing chamber.