Abstract
Background and Purpose: We performed an ex vivo study to measure the effects of various factors on the deflection angles of a new flexible ureteroscope with active primary and secondary deflections. Materials and Methods: Active primary and secondary deflections in different sequences were measured initially without working devices (baseline measures). Nine different working instruments were then placed in the working channel, and alterations in ureteroscope deflectability were measured. Results: Baseline measures showed excellent angles of deflections, consistent with the manufacturer's reporting. Among the wires tested, only the stiff wire had a negative (minor) impact on deflectability. There were similar minimal decreases of deflection with baskets. The 1.6F electrohydraulic lithotripsy (EHL) probe had minimal influence on deflectability compared with the 3.0F EHL probe. The 200-μm and 365-μm laser fibers significantly (>20°) decreased the angles of deflection. Conclusions: In spite of the changes in deflectability with almost all working instruments, there were no significant decreases in the angles with most of them. The sequence is important in obtaining optimal deflection.
| Original language | English |
|---|---|
| Pages (from-to) | 733-736 |
| Number of pages | 4 |
| Journal | Journal of Endourology |
| Volume | 17 |
| Issue number | 9 |
| State | Published - Nov 1 2003 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Urology
Cite this
Variables Affecting Deflection of a New Third-Generation Flexible Ureteropyeloscope (DUR-8 Elite). / Lobik, Leonid; Lopez-Pujals, Alvin; Leveillee, Raymond J.
In: Journal of Endourology, Vol. 17, No. 9, 01.11.2003, p. 733-736.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Variables Affecting Deflection of a New Third-Generation Flexible Ureteropyeloscope (DUR-8 Elite)
AU - Lobik, Leonid
AU - Lopez-Pujals, Alvin
AU - Leveillee, Raymond J.
PY - 2003/11/1
Y1 - 2003/11/1
N2 - Background and Purpose: We performed an ex vivo study to measure the effects of various factors on the deflection angles of a new flexible ureteroscope with active primary and secondary deflections. Materials and Methods: Active primary and secondary deflections in different sequences were measured initially without working devices (baseline measures). Nine different working instruments were then placed in the working channel, and alterations in ureteroscope deflectability were measured. Results: Baseline measures showed excellent angles of deflections, consistent with the manufacturer's reporting. Among the wires tested, only the stiff wire had a negative (minor) impact on deflectability. There were similar minimal decreases of deflection with baskets. The 1.6F electrohydraulic lithotripsy (EHL) probe had minimal influence on deflectability compared with the 3.0F EHL probe. The 200-μm and 365-μm laser fibers significantly (>20°) decreased the angles of deflection. Conclusions: In spite of the changes in deflectability with almost all working instruments, there were no significant decreases in the angles with most of them. The sequence is important in obtaining optimal deflection.
AB - Background and Purpose: We performed an ex vivo study to measure the effects of various factors on the deflection angles of a new flexible ureteroscope with active primary and secondary deflections. Materials and Methods: Active primary and secondary deflections in different sequences were measured initially without working devices (baseline measures). Nine different working instruments were then placed in the working channel, and alterations in ureteroscope deflectability were measured. Results: Baseline measures showed excellent angles of deflections, consistent with the manufacturer's reporting. Among the wires tested, only the stiff wire had a negative (minor) impact on deflectability. There were similar minimal decreases of deflection with baskets. The 1.6F electrohydraulic lithotripsy (EHL) probe had minimal influence on deflectability compared with the 3.0F EHL probe. The 200-μm and 365-μm laser fibers significantly (>20°) decreased the angles of deflection. Conclusions: In spite of the changes in deflectability with almost all working instruments, there were no significant decreases in the angles with most of them. The sequence is important in obtaining optimal deflection.
UR - http://www.scopus.com/inward/record.url?scp=0345016953&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0345016953&partnerID=8YFLogxK
M3 - Article
C2 - 14642032
AN - SCOPUS:0345016953
VL - 17
SP - 733
EP - 736
JO - Journal of Endourology
JF - Journal of Endourology
SN - 0892-7790
IS - 9
ER -