There are many types of<unk> s available on the market. Auto Disable (AD)<unk> s are designed as a single use<unk> , with an internal mechanism blocking the barrel once depressed so it cannot be depressed again. The other type of<unk>  with a re-use prevention feature is the breaking plunger<unk> . An internal mechanism cracks the<unk>  when the plunger is fully depressed to prevent further use. These<unk> s are only effectively disabled with a full depression of the plunger; users can avoid activating the re-use prevention feature and re-use the<unk> . This<unk>  has a sliding needle guard The more effective<unk> s have reuse and needlestick prevention features. A sheath or hood slides over the needle after the injection is completed with a Needlestick Prevention<unk> , which also has a re-use prevention feature (either an auto disable mechanism or breaking plunger). Retractable<unk> s use either manual or spring-loaded retraction to withdraw the needle into the barrel of the<unk> . Some brands of spring-loaded<unk> s can have a splatter effect, where blood and fluids are sprayed off the cannula from the force of the retraction. Manual retraction<unk> s are generally easier to depress because there is no resistance from a spring. One model of<unk>  with deployable needle guard
Safety syringe
Transfer board
Isolation tank
Telepharmacy
GPnotebook
Vacutainer
Biological pharmacist
Examination table