Study of BD Pre-filled Flush Syringes in China

Inclusion Criteria: 1. Age >or equal to 18, no limitation on gender; 2. Hospitalized patients; 3. Patients who are anticipated to need or have in situ vascular access catheter devices (This may include: Peripheral Intravenous Catheter (PIVC), Central Venous Catheter (such as peripherally inserted central catheter (PICC)); 4. Patients who are expected to require flushing the vascular access catheter with saline at the beginning, during, or end of infusion therapy, or who require to flush and/or lock vascular access catheters at the beginning, during, the end of drug therapy; 5. Patients who can understand the purpose of the trial, agree to participate in this clinical trial and voluntarily sign the informed consent form. Exclusion Criteria: 1. Patient reports pregnancy or lactation (self-report); 2. Subjects who are known to have blockage or recanalization of vascular access prior to this trial. 3. Subjects who are known to have uncomfortable symptoms such as redness and pain, or common complication associated with indwelling catheter such as phlebitis and infection at the localized insertion site prior to this trial. 4. Patient participating in another drug or medical device clinical trial at the time of consent or has participated in a drug or medical device clinical trial within three months before enrollment; 5. Any other situation that, in the option of the Investigator would make the patient considered unfit for this study.