Please assess the completion status of the following clinical trial:

Trial Title: Clinical Study on Disposable Sterile Urinary Catheter

Study Design Characteristics:
- Allocation: RANDOMIZED
- Intervention Model: PARALLEL
- Observational Model: None
- Primary Purpose: TREATMENT
- Time Perspective: None
- Masking: NONE
- Phase: None
- Number of Arms: 2.0

Eligibility Criteria:
Inclusion Criteria:~* 18-80 year old patients;~* Retained catheter ≥ 7 days;~* Patients who were conscious and had good communication skills and volunteered to participate in the study.~Exclusion Criteria:~* Pregnant and lactating female patients;~* Diabetes patients;~* Patients allergic to sulfadiazine, silica gel and stainless steel;~* Urethral malformation, acute urethral injury, prostate disease, intermittent catheterization, suprapubic cystostomy and other patients who are not suitable for catheterization;~* Patients who have used urinary catheters for a long time or had catheters retained within one week;~* Patients who are participating in other clinical trials that interfere with this trial.

- Gender: ALL
- Minimum Age: 18 Years
- Maximum Age: 80 Years
- Healthy Volunteers: f

Study Arms:
- trial group (Type: EXPERIMENTAL): Patients in this group used the disposable urinary catheter
- control group (Type: ACTIVE_COMPARATOR): Patients in this group used super smooth antibacterial urinary catheter

Based on this trial design, predict the completion outcome and termination type (if applicable).