Piston valve for serially connected drug modules of a combination drug delivery device
Patent Information
- Application Number
- DE602020048571
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2019-11-08
- Filing Date
- 2020-11-09
- Publication Date
- 2025-03-26
- Estimated Expiration
- 2040-11-09
AI Technical Summary
Current methods for compounding and preparing liquid drugs for intravenous infusion are inefficient, leading to increased risk of needle-stick injuries, medication errors, and significant drug waste due to the need for complex and costly machinery, as well as the inability to easily combine multiple drugs without wasting unused portions.
A moveable piston seal with a bypass chamber in the module's outlet fluidics allows for sealing during vial piercing while enabling fluid flow when vacuum is applied, utilizing two lumen pathways within the spike to manage pressure and prevent drug escape, and a spring-loaded seal to ensure containment and efficient transfer between modules.
This solution reduces the risk of needle-stick injuries, minimizes drug waste, and allows for the preparation of combined drug formulations outside a pharmacy environment, enhancing safety and reducing costs by enabling flexible and efficient drug administration.