18680212. Auto-injector simplified abstract (Sanofi-Aventis Deutschland GMBH)

Auto-injector

Organization Name

Sanofi-Aventis Deutschland GMBH

Inventor(s)

Matthew Ekman of Cheshire (GB)

Timothy Donald Barrow-williams of St. Albans Herts (GB)

Yannick Hourmand of Haslingfield Cambridge (GB)

Auto-injector - A simplified explanation of the abstract

This abstract first appeared for US patent application 18680212 titled 'Auto-injector

The abstract describes an auto-injector for administering a dose of liquid medicament, which includes a housing containing a syringe with a needle and a stopper, an activator to release the spring for injection, and a spring capable of pushing the needle into an advanced position through an orifice.

• The auto-injector includes an elongate housing with a syringe containing a needle and a stopper.
• A spring is capable of pushing the needle into an advanced position through an orifice for injection.
• An activator is arranged to release the spring for injection after locking it in a pressurized state.
• The syringe is operated to supply the dose of medicament and then retracted into the housing.
• The needle is pushed past the proximal end of the housing to administer the medicament.

Potential Applications: - Medical facilities for quick and efficient administration of liquid medicament. - Emergency situations where immediate injection is required. - Home use for self-administration of medication.

Problems Solved: - Provides a convenient and reliable method for administering liquid medicament. - Ensures accurate dosing and precise delivery of medication. - Reduces the risk of needle stick injuries.

Benefits: - Easy to use and portable for on-the-go medication administration. - Minimizes the risk of contamination and infection. - Increases patient compliance with medication regimens.

Commercial Applications: Auto-injectors can be marketed to healthcare facilities, pharmacies, and individuals requiring regular medication administration. The technology has the potential to improve patient outcomes and streamline the process of delivering liquid medicaments.

Questions about the auto-injector: 1. How does the activator lock and release the spring for injection? 2. What safety features are incorporated into the design to prevent accidental needle sticks?

Frequently Updated Research: Ongoing research may focus on enhancing the design of auto-injectors for improved usability and patient comfort. Studies may also explore the effectiveness of auto-injectors in various medical settings.

Original Abstract Submitted

An auto-injector for administering a dose of a liquid medicament includes an elongate housing arranged to contain a syringe with a hollow needle and a stopper for sealing the syringe and displacing the medicament, the housing having a distal end and a proximal end with an orifice intended to be applied against an injection site. The syringe is slidably arranged with respect to the housing. A spring capable of, upon activation: pushing the needle from a covered position inside the housing into an advanced position through the orifice and past the proximal end (P), operating the syringe to supply the dose of medicament (M), and retracting the syringe with the needle into the covered position. After delivering the medicament, an activator arranged to lock the spring in a pressurized state prior to manual operation and capable of, upon manual operation, releasing the spring for injection.