Description
The 15.5Fr, 19.8Fr, 21Fr, and 24Fr Urological Sheaths are essential access devices designed to facilitate smooth passage of endoscopic instruments into the urinary tract during a variety of urological procedures. These sheaths act as a working channel between the external environment and the ureter or renal pelvis, enabling efficient irrigation, repeated instrument exchange, and reduced trauma to the urethral and ureteral mucosa.
Commonly used during ureteroscopy, percutaneous nephrolithotomy (PCNL), or cystoscopy, these sheaths allow for stable access while minimizing repeated dilation or reinsertion trauma. Their robust design supports safe navigation, optimal visualization, and streamlined workflow for the urologist, especially in stone management and upper tract diagnostics.
Features and Benefits
|
Feature |
Benefit |
|
Multiple diameter sizes: 15.5Fr – 24Fr |
Tailored access for different anatomies and procedures |
|
Smooth tapered distal tip |
Eases insertion, minimizes urethral trauma |
|
Radiopaque marker |
Enables precise fluoroscopic positioning |
|
Durable biocompatible construction |
Ensures structural integrity and patient safety |
|
Excellent fluid management capacity |
Allows optimal irrigation and visualization |
|
Wide internal lumen |
Facilitates easy passage of endoscopes and instruments |
|
Reusable or single-use models (if applicable) |
Customizable to clinical and budgetary needs |
Summary and Conclusion
The 15.5Fr, 19.8Fr, 21Fr, and 24Fr Urological Sheaths are indispensable tools in modern urology, enabling safer, faster, and more efficient access to the upper urinary tract. Their design supports complex procedures such as stone removal, stricture evaluation, and diagnostic endoscopy, while minimizing trauma and enhancing procedural control. These sheaths are a must-have in every urology suite, delivering consistent performance across a wide range of cases.
Instructions for Use
- Pre-Procedure:
- Select appropriate sheath size based on procedure type and patient anatomy.
- Confirm sheath integrity and ensure sterility.
- Lubricate distal end before insertion.
- Insertion:
- Insert sheath gently under direct endoscopic or fluoroscopic guidance.
- Advance to desired position within ureter, bladder, or renal pelvis.
- Confirm placement via radiopaque marker if using imaging.
- During Procedure:
- Pass instruments (ureteroscope, baskets, laser fibers) through the sheath.
- Utilize irrigation port for continuous or pulsed irrigation.
- Maintain stable access and visibility throughout the procedure.
- Post-Procedure:
- Carefully remove sheath after instrument withdrawal.
- Dispose of or sterilize sheath according to hospital protocol.
- Document any resistance or anatomical variations encountered.
Comparison Table: Urological Sheath vs. Direct Scope Insertion
|
Feature |
Using Urological Sheath |
Direct Scope Insertion |
|
Repeated Instrument Access |
Easy and smooth |
May cause repeated trauma |
|
Scope Protection |
Reduced wear and tear on scope |
Higher risk of damage |
|
Irrigation Management |
Excellent via sheath ports |
Limited |
|
Procedural Time |
Shorter due to easy exchanges |
Longer due to repeated navigation |
|
Visualization |
More consistent |
Variable due to fluid egress |
|
Patient Trauma |
Lower |
Higher from repeated manipulation |
Specification Sheet
Product Name: Urological Access Sheath
Available Sizes:
- 15.5Fr (approx. 5.2 mm outer diameter)
- 19.8Fr (approx. 6.6 mm outer diameter)
- 21Fr (approx. 7 mm outer diameter)
- 24Fr (approx. 8 mm outer diameter)
Working Lengths: 30–45 cm (varies by model)
Tip Design: Tapered atraumatic tip
Material: Biocompatible polymer or coated stainless steel (varies by model)
Radiopaque Marker: Yes
Reusability: Single-use or reusable (specify model)
Sterilization: Autoclavable or pre-sterilized (for single-use models)
Certifications: CE Marked, ISO 13485, FDA (if applicable)
Accessory Compatibility: Compatible with standard ureteroscopes, nephoscopes, and guidewires
Frequently Asked Questions (FAQs)
Q1: What size sheath should I use?
A: It depends on the scope and procedure. Smaller sheaths (15.5Fr, 19.8Fr) are ideal for narrower ureters or paediatric cases, while larger sheaths (21Fr, 24Fr) provide better access for PCNL or larger instruments.
Q2: Can these sheaths be used with laser fibres?
A: Yes. The wide lumen accommodates laser fibres, baskets, and forceps.
Q3: Are these sheaths reusable?
A: Some models are reusable and autoclavable; others are single use. Refer to your specific product label.
Q4: Do the sheaths have radiopaque markers?
A: Yes, to assist in fluoroscopic positioning during procedures.
Q5: Can I use the sheath without a guidewire?
A: It is recommended to use a guidewire for safer and more controlled placement.
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