4fr/5fr, 580mm URS Semi Rigid Flexible

Description

The 4Fr/5Fr, 580mm URS Semi-Rigid Flexible Ureteroscope is a precision-engineered endoscopic instrument designed for diagnostic and therapeutic procedures in the upper urinary tract. Combining the advantages of both flexible and rigid ureteroscopes, this semi-rigid model provides controlled access to the ureter and renal pelvis while offering optimal deflection, visibility, and working length.

Compact, lightweight, and highly manoeuvrable, it is ideal for ureteral stone management, biopsy, stricture evaluation, and foreign body retrieval. Its slim design (4Fr/5Fr) enables safe advancement through the ureter, minimizing trauma and enhancing patient comfort.

 

Medical Process Explanation

The semi-rigid flexible ureteroscope is used in ureteroscopy, a procedure to examine and treat disorders in the ureters and kidneys:

1. Anaesthesia: Patient is placed under general or spinal anaesthesia.
2. Access Preparation: A cystoscope is inserted into the bladder. A guidewire is advanced through the ureteral orifice into the ureter.
3. Ureteroscope Insertion: The 4Fr or 5Fr semi-rigid ureteroscope is introduced over the guidewire, advancing carefully into the ureter and potentially the renal pelvis.
4. Visualization: Continuous irrigation is applied to distend the ureter. The surgeon navigates and inspects for stones, strictures, tumours, or injuries.
5. Intervention: Depending on findings, the surgeon may:
   • Fragment stones using laser lithotripsy.
   • Retrieve calculi with baskets.
   • Perform biopsies.
   • Dilate or treat ureteral strictures.
6. Completion: Upon completion, the ureteroscope is withdrawn, and a ureteral stent may be placed.

 

Features and Benefits

Feature	Benefit
Slim 4Fr/5Fr outer diameter	Enables access in tight or narrow ureters, especially in paediatrics or females
580mm working length	Allows deep access to proximal ureters and renal pelvis
Semi-rigid shaft with flexible tip	Offers manoeuvrability plus torque control
High-resolution optics	Provides clear visualization during diagnostic and therapeutic interventions
Ergonomic handle design	Enhances surgeon control and reduces fatigue
Integrated working channel	Allows use of baskets, laser fibres, or biopsy forceps
Autoclavable or single-use variants	Supports reusable or disposable preferences

 

Instructions for Use

1. Pre-Procedure Check: Inspect the ureteroscope for damage or distortion; test the optics and light source.
2. Sterilization: Ensure proper sterilization (if reusable) before each use.
3. Patient Prep: Under anaesthesia, insert a guidewire via cystoscope into the ureter.
4. Scope Insertion: Advance the ureteroscope over the guidewire under fluoroscopic or direct vision, using irrigation for visualization.
5. Procedure:
   • Use flexible tip to navigate ureter curves.
   • Insert instruments through the working channel (e.g., laser fibre or basket).
   • Perform necessary treatment (stone fragmentation, retrieval, biopsy).
6. Completion:
   • Withdraw instruments carefully.
   • Remove scope.
   • Place a ureteral stent if required.

Note: Always use appropriate irrigation and avoid excessive force to prevent ureteral injury.

 

Summary

The 4Fr/5Fr, 580mm Semi-Rigid Flexible Ureteroscope offers unparalleled access and visualization in upper urinary tract procedures. Its hybrid flexibility, extended reach, and slim profile make it ideal for delicate navigation in both adult and paediatric urology. With compatibility for most therapeutic tools, it empowers urologists to deliver safe and effective care.

 

Conclusion

For healthcare providers seeking precision, reliability, and adaptability, the 4Fr/5Fr, 580mm Semi-Rigid Flexible Ureteroscope stands out as a versatile solution. Whether used for stone treatment or diagnostic evaluation, it delivers exceptional results while minimizing patient trauma and enhancing procedural efficiency.

 

Comparison Table: Semi-Rigid vs. Fully Flexible Ureteroscope

Feature	Semi-Rigid Ureteroscope (4Fr/5Fr)	Fully Flexible Ureteroscope
Flexibility	Partial flexibility; rigid shaft, flexible tip	Full deflection and flexibility
Diameter	Smaller (4Fr/5Fr)	Slightly larger (up to 8.5Fr)
Manoeuvrability	Limited curvature navigation	Excellent for complex renal anatomy
Durability	Higher durability; fewer breakages	Delicate; higher maintenance needs
Cost	Lower	Higher upfront and maintenance costs
Ideal Use	Mid and distal ureter; diagnostic; stone retrieval	Renal pelvis, upper pole access
Instrument Compatibility	Compatible with standard baskets/lasers	Also compatible, but may need specific sizing

 

Specification Sheet

Product Name: 4Fr/5Fr, 580mm Semi-Rigid Flexible Ureteroscope
Outer Diameter: 4Fr or 5Fr
Working Length: 580mm
Working Channel: 1.2mm–1.5mm inner diameter
Deflection: Passive or active tip deflection (model dependent)
Shaft Material: Medical-grade stainless steel with flexible distal segment
Optics: High-resolution fibre optic bundle or digital chip-on-tip
Handle Type: Ergonomic pistol-grip or straight handle
Sterilization: Autoclavable (reusable model) or EO sterilized (disposable model)
Accessory Compatibility: Compatible with stone baskets, biopsy forceps, and laser fibres
Packaging: Individually packed (sterile or non-sterile as per model)
Certifications: CE Marked, ISO 13485, FDA (if applicable)

 

FAQs

Q1: What procedures is this ureteroscope suitable for?
It is suitable for ureteroscopy, stone retrieval, biopsies, and ureteral evaluations.

Q2: Is the semi-rigid ureteroscope safe for paediatric patients?
Yes, the 4Fr size is especially appropriate for paediatric or small-calibre ureters.

Q3: Can laser fibres be used with this ureteroscope?
Yes, most models support 200μm to 365μm laser fibres for lithotripsy.

Q4: Is the scope reusable or disposable?
Models are available in both reusable and single-use configurations.

Q5: How is it sterilized?
Reusable models are compatible with autoclave sterilization. Always follow manufacturer guidelines.

 

Authoritative External Links

• NHS – Ureteroscopy Procedure Overview
• PubMed – Semi-Rigid Ureteroscopy Outcomes

 

 

 

 

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