18680366. 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 18680366 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 stopper, and an activator to release the spring for injection.

• The auto-injector includes an elongate housing with a syringe containing a needle and stopper.
• The syringe is slidably arranged within the housing for dosing the medicament.
• A spring is capable of pushing the needle into an advanced position for injection.
• An activator locks the spring in a pressurized state and releases it for injection upon manual operation.
• The auto-injector is designed to deliver a dose of medicament safely and efficiently.

Potential Applications: - Medical facilities - Home healthcare settings - Emergency response situations

Problems Solved: - Ensures accurate dosing of liquid medicament - Provides a convenient and easy-to-use method for injection

Benefits: - Increases efficiency in administering medication - Reduces the risk of needlestick injuries - Improves patient compliance with medication regimens

Commercial Applications: Auto-injectors can be used in various healthcare settings, including hospitals, clinics, and home care, to administer medications quickly and accurately.

Questions about the technology: 1. How does the auto-injector ensure the safety of the user during injection? 2. What are the potential challenges in manufacturing auto-injectors for mass production?

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.