Development of Jet Injection and its Application to Intralesional Therapy in Dermatology

Abstract

The development of high-pressure jet injectors is described. One of the most recent is the Porton needleless injector. This injector has many advantages over conventional needles and syringes—freedom from pain, speed, no sterilizing of equipment between cases, and control over the speed, volume, and depth of injection. Its use in the administration of intralesional steroid therapy in dermatological conditions is described. The diseases treated included alopecia (areata, totalis, and universalis), psoriasis, pustular psoriasis, chronic discoid lupus erythematosus, and granuloma annulare. © 1965, British Medical Journal Publishing Group. All rights reserved.