A closed system drug transfer device was invented for the purpose of enabling the safe transfer and handling of medicines and other chemical compounds. The main reason behind the concept of enclosed instruments is to reduce the exposure to hazardous drugs. Studies have revealed that the people working in the health care industry are often found to be affected by health problems like dermal infections, allergies, miscarriage, reproductive problems, birth defects and cancer. These health defects arise due to contamination of work places with hazardous medicines and exposure of people working in these areas to such contamination. Therefore contamination of work places should be avoided.
While working with Chemotherapy drugs, antiviral and bioengineered medications, there is a danger of exposure to toxic chemicals contained in these medicines. The exposure can be caused by vapors, aerosols, leaks, spills and needlestick injuries. The traditional instruments do not provide protection against the dripping of medicine fluids and escape of chemical aerosols and vapors. A Closed system drug transfer device facilitates pressure equalization within the system; there is no contamination from external environment. It is designed to provide maximum protection while simplifying the preparation and administration of hazardous medications. It has a sealed airtight mechanism that promises a safe and sterile transfer of medicine. Thus the chances of leaks, drips and escape of aerosols are reduced.
Some Closed system drug transfer devices use dual needle syringe. While one needle draws the medicine into the syringe from the vial, the other needle sends sterile air into the vial. Thus balanced pressure is maintained both in the syringe and the vial and the right dose of medication can be drawn into the syringe without exposing the needles to the environment contaminants. There is no escape of fluids, aerosols and vapors from the device. Thus contamination and exposure to harmful medicines can be prevented by using enclosed devices.