Becton Dickinson and Company Limited

Ankur S Kulshrestha

Richard G Giddes

Gerald Leon Bonczynski

Chad H Smith

Shishir Prasad

Gheorghe Cojocariu

Kweku Addae-Mensah

Sathya Kaliyamoorthy

Mildred Calistri-Yeh

Michael Vincent Quinn

Andrew Wong

Behzad Davachi Mottahed

Yan Yevmenenko

Dinesh S Kommireddy

Lourdes Pia Lopez Amora

Lourdes Pia L Amora

Chad Smith

Lourdes Pia Amora

Richard Giddes

A thermoplastic elastomer stopper that meets the desired material properties of a stopper for a syringe assembly is disclosed. The compression set of the thermoplastic elastomer stopper of the present disclosure is &#x2264;50% when measured at 25% compression for 22 hrs at 70 degree C. The hardness of the thermoplastic elastomer stopper of the present disclosure is 40-70 Shore A. The viscosity of a thermoplastic elastomer stopper of the present disclosure is &#x2265;70 Pa&#xb7;s at 1,000 sshear rate, &#x2265;12.0 Pa&#xb7;s at 10,000 sshear rate, and &#x2265;3.0 Pa&#xb7;s at 50,000 sshear rate when measured using a capillary rheometer at 205 degree C. (Die: Roundhole 20 mm length/1 mm diameter/180 degree inlet, Piston: d=15 mm, and melting time=7 min). The present non-lubricated stopper exhibits the required functional performance of a lubricated stopper.

Leak-free stopper having low breakloose and sustaining forces

Syringe plunger rods comprising an elongate body formed from a composition comprising one or more of virgin material, a sterilization-stable recycled resin and a biobased compositions are described. Plunger rods comprising a plurality of ribs, some of which may have a plurality of openings, are also described. The plunger rods requiring less material while maintaining sufficient structural integrity to function properly.

Recycled resin compositions and disposable medical devices made therefrom

Compositions including recycled resin components and medical devices and components made form such compositions are disclosed. The compositions and medical devices are characterized as biocompatible and sterilization stable. In one or more embodiments, the compositions include a recycled resin component and may include one or more of an anti-oxidant component, slip additive component, anti-static component, impact modifier component, colorant component, acid scavenger component, X-ray fluorescence agent component, radio opaque filler component, surface modifier component, melt stabilizer component, clarifier component, processing aid component and reinforcing agent component. Methods of forming medical articles and components are also disclosed.

Growing community of inventors

Hillsborough, NJ, United States of America

Ankur S Kulshrestha