Systems and methods for combining materials

• US 8,652,097 B2
• Filed: 09/13/2011
• Issued: 02/18/2014
• Est. Priority Date: 04/04/2008
• Status: Active Grant

• Current Assignee: B Braun Melsungen AG (B. Braun Holding GmbH & Co. KG)
• Original Assignee: B Braun Melsungen AG (B. Braun Holding GmbH & Co. KG)
• Inventors: Lee, Freddie Eng Hwee
• Primary Examiner(s): Lucchesi, Nicholas
• Assistant Examiner(s): PATEL, PRITESH ASHOK
• Application Number:
  US13/230,996
• Publication Number:
  US 20120035537A1
• Time in Patent Office: 889 Days
• Field of Search: 604 83- 92, 604/500, 604/506, 604/507, 604/518
• US Class Current: 604/83
• CPC Class Codes: A61J 1/201 having one piercing end
• CPC Class Codes: A61J 1/2037 having valve means
• CPC Class Codes: A61J 1/2075 for external venting
• CPC Class Codes: A61J 1/2096 Combination of a vial and a syringe for transferring or mixing their contents

Abstract

A method of combining a drug in a first container and a liquid in a second container includes placing the first container and the second container in fluid communication with a housing, combining the liquid and the drug in the first container, transferring the liquid and the drug from the first container to the housing, and transferring the liquid and the drug from the housing to a third container.

Claims

1. A medical device system, comprising:

a medical device comprising a housing configured to be placed in fluid communication with a first container containing a drug, a second container containing a liquid, a pump, and a third container, the housing defining a fluid chamber and a vent chamber in fluid communication with the fluid chamber,

wherein the medical device is configured to combine the liquid and the drug in the first container, to transfer the liquid and the drug from the first container to the fluid chamber and the vent chamber, and to transfer the liquid and the drug from the fluid chamber and the vent chamber to the third container;

wherein negative pressure within the housing draws the liquid and the drug from the first container and the vent chamber through the fluid chamber; and

wherein positive pressure within the housing forces the liquid and the drug into the third container.

2. The system of claim 1, wherein the medical device comprises a one-way flow valve adapted to restrict flow of the liquid from the housing to the first container.

3. The system of claim 1, wherein the medical device comprises a valve adapted to restrict air flow into the housing.

4. The system of claim 1, wherein the medical device comprises a valve adapted to restrict air flow into the housing and to allow air flow out of the housing.

5. The system of claim 4, wherein the valve comprises a movable member responsive to a level of liquid in a chamber containing the movable member.

6. The system of claim 1, wherein the medical device comprises a valve adapted to restrict liquid flow into the third container.

7. The system of claim 1, wherein the medical device comprises a one-way flow valve adapted to restrict liquid flow from the third container to the housing.

8. The system of claim 1, wherein the medical device comprises at least two one-way flow valves in the housing.

9. The system of claim 1, wherein the medical device comprises at least three flow valves in the housing.

10. The system of claim 1, wherein the medical device comprises at least two piercing elements in fluid communication with the housing.

11. The system of claim 1, wherein the medical device comprises an air filter, and the medical device is configured to restrict the air filter from contacting the liquid.

12. The system of claim 1, further comprising the first container, the second container, the pump in the form of a syringe, and a third container.

13. The system of claim 1, further comprising a conduit integrally connected to the housing, the conduit facilitating the fluid communication between the housing and the second container and allowing the second container to be positioned remotely from the medical device.