Catheter Placement for Peripheral Nerve Blocks
SonoLong SoftSecure
SonoLong SoftSecure
Catheter Placement for Peripheral Nerve Blocks
Clinical Requirements - Precision in Catheter Placement
Precise and permanent placement of the catheter is of crucial importance for reliable performance of peripheral nerve blocks. Marhofer et al.1 have analyzed the causes and consequences of catheter misplacement in detail. Among other things, they found a highly significant correlation between dwell time and dislocation rate of the catheter for interscalene and femoral nerves.
Primary dislocation
If the catheter is pushed further through the nerve, the anesthetic not only misses its target area, but serious complications such as injury to nerve structures and blood vessels can also occur.
Secondary dislocation
Early mobilization of patients also carries the risk of catheter migration. This can damage vessels or nerves and the effectiveness of regional anesthesia cannot be guaranteed.
Catheter misplacement using the example of an interscalene block
Relevance of the Catheter Material - Atraumatic, Flexible Catheter Tip
An important starting point for reducing the dislocation rate is the quality of the catheter tip. In 2012, Shih et al. found a direct correlation between the stiffness of the catheter material and the dislocation rate during epidural block.2
This is exactly where the PAJUNK® development started off from. The result is the SonoLong SoftSecure catheter, which is characterized by a soft catheter material and is equipped with a stylet, a stainless steel spiral, and three lateral openings.
The soft tip of the SonoLong SoftSecure catheter ensures precise placement, as the tip is deflected away from the nerve wall due to the wall's resistance.
For the same reason, the catheter is also held back by the surrounding, firmer structures of the fascia and rolls up in the immediate vicinity. Further advancement of the catheter and subsequent dislocation during patient mobilization should be avoided.
Catheter placement with SonoLong SoftSecure catheter using the example of an interscalene block
“With this combination of atraumatic, flexible catheter material and a stable architecture,
Pajunk has established a new generation of catheters that virtually eliminate dislocation.“
Frederik Lehn, Head of Development at Pajunk
SonoLong SoftSecure Set Overview
SonoLong SoftSecure Catheter Features & Advantages
Soft Catheter Material
- Makes the catheter tip soft and flexible.
- The primary and secondary dislocation rate should therefore be minimized.
- Injuries to nerve structures and blood vessels can be prevented from occurring.
Markings and Graduations
- Outlet markings for the SonoLong needle 50 mm, 100 mm, 150 mm, and six ascending markings in 5 cm increments up to 30 cm.
- Indicate the exit of the catheter tip from the needle.
- Provides easy control of catheter position.
Catheter Container
- Supports the one-handed insertion of the catheter through the needle and tactile perception.
- Catheter placement is possible under sterile conditions.
- Memory effect can be avoided.
Three Lateral Openings
- Are arranged around the first 1.1 cm, the tip is closed
- Optimizes the even distribution of the anesthetic
Stability through Mandrin
- This is set back 5 cm from the distal end.
- Supports convenient and safe secure placement.
- The soft catheter tip maintains its atraumatic properties.
Integrated Stainless Steel Helical Coil
- Ensures kink resistance and flexibility, as well as a stable inner lumen3.
- Enables a high flow rate of the anesthetic
- and a simple connection to the injection pump.
SonoLong NanoLine® Needle Features & Advantages
Cornerstone Reflectors
- 360° graduations on the first 20 mm of the needle in two sections.
- Optimizes the ultrasound visibility of the needle shaft and the needle tip4.
- Reliable and optimised needle echogenicity at higher angle.
NanoLine Coating
- Ultra-thin polymer layer in the inner and outer lumen.
- Specifies stimulation only through the non-insulated needle tip.
SonoLong SoftSecure Ordering Info
| Item description |
LUER Item no. |
NRFit® Item no. | Purchase Unit |
|---|---|---|---|
| 19G x 50mm (2") with Facet Tip S / 20G x 50cm catheter with closed tip and 3 lateral openings / Clamping Adapter / Filter 0,2µm / FixoLong | 531189-31A | 531169-31A | 10 |
| 19G x 100mm (4") with Facet Tip S / 20G x 50cm catheter with closed tip and 3 lateral openings / Clamping Adapter / Filter 0,2µm / FixoLong | 521189-31A | 521169-31A | 10 |
| 19G x 150mm (6") with Facet Tip S / 20G x 50cm catheter with closed tip and 3 lateral openings / Clamping Adapter / Filter 0,2µm / FixoLong | 511189-31A | 511169-31A | 10 |
| Item description | 19G x 50mm (2") with Facet Tip S / 20G x 50cm catheter with closed tip and 3 lateral openings / Clamping Adapter / Filter 0,2µm / FixoLong |
|---|---|
|
LUER Item no. | 531189-31A |
|
NRFit® Item no. | 531169-31A |
| Purchase Unit | 10 |
| Item description | 19G x 100mm (4") with Facet Tip S / 20G x 50cm catheter with closed tip and 3 lateral openings / Clamping Adapter / Filter 0,2µm / FixoLong |
|---|---|
|
LUER Item no. | 521189-31A |
|
NRFit® Item no. | 521169-31A |
| Purchase Unit | 10 |
| Item description | 19G x 150mm (6") with Facet Tip S / 20G x 50cm catheter with closed tip and 3 lateral openings / Clamping Adapter / Filter 0,2µm / FixoLong |
|---|---|
|
LUER Item no. | 511189-31A |
|
NRFit® Item no. | 511169-31A |
| Purchase Unit | 10 |
| Item description |
LUER Item no. |
NRFit® Item no. | Purchase Unit |
|---|---|---|---|
| 18G x 50mm (2") with Tuohy Tip / 20G x 50cm catheter with closed tip and 3 lateral openings / Clamping Adapter / Filter 0,2µm / FixoLong | 531189-31C | 531169-31C | 10 |
| 18G x 100mm (4") with Tuohy Tip / 20G x 50cm catheter with closed tip and 3 lateral openings / Clamping Adapter / Filter 0,2µm / FixoLong | 521189-31C | 521169-31C | 10 |
| Item description | 18G x 50mm (2") with Tuohy Tip / 20G x 50cm catheter with closed tip and 3 lateral openings / Clamping Adapter / Filter 0,2µm / FixoLong |
|---|---|
|
LUER Item no. | 531189-31C |
|
NRFit® Item no. | 531169-31C |
| Purchase Unit | 10 |
| Item description | 18G x 100mm (4") with Tuohy Tip / 20G x 50cm catheter with closed tip and 3 lateral openings / Clamping Adapter / Filter 0,2µm / FixoLong |
|---|---|
|
LUER Item no. | 521189-31C |
|
NRFit® Item no. | 521169-31C |
| Purchase Unit | 10 |
Downloads
Incl. 2 posters for: Trauma and Thoracic Trauma. Dedicated to Emergency Doctors and other non-anaesthesia professionals who deal with trauma patients
GuRU Poster AnaesthesiaIncl. 4 posters for: upper limb, lower limb, trunk and ankle. Dedicated to Anaesthesiologists
Studies:
1 Marhofer D. et al. (2013). Dislocation rates of perineural catheters: a volunteer study. British Journal of Anaesthesia, 111: 800–806.
2 Shih C.-K. et al. (2012). Soft catheters reduce the risk of intravascular cannulation during epidural block. Koahsiung Journal of Medical Science, 28: 373–376.
3 Toledano, R. D. et al. (2014). Epidural Catheter Design – Histroy, Innovations and Clinical Implications. Anesthesiology, V 121, No 1.
4 Fuzier R. et al. (2015). The echogenicity of nerve blockade needles. Anesth., 70: 462–466.
NRFit® is a registered trademark of GEDSA and is used with their permission
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