Smooth, steerable, cost-effective RF Cannula for use with thermocouple (TC) electrodes. Each RF cannula's insulation is specially tapered at the tip for easy insertion and maneuvering. Select siliconized (white insulation) or non-siliconized (black insulation). Available in all sizes and shapes used in spinal pain management and podiatry, including straight or curved shafts, sharp or blunt tips. Compatible with RF generators from major radiofrequency manufacturers, including the Radionics® RFG-3C plus. Compare the cost, quality, and versatility of the Cosman® RF Cannula with the Neurotherm® RF cannula, Cotop® SMK cannula, Stryker® RF cannula, Kimberly-Clark® RF cannula, and Baylis® RF cannula. Shaft lengths: 5, 10, 15, 20 cm. Tip exposures: 2, 4, 5, 10, 15, 20 mm. Diameters: 22, 21, 20, 18, 16 gauge.
Cosman radiofrequency (RF) cannulae are used with thermocouple electrodes, such as the Cosman CSK, TCN, TCD electrodes, for temperature-controlled RF lesioning for the treatment of pain. RF cannulae are typically used to access nervous structures around the spinal, such as the medial branch, dorsal root ganglion, sympathetic chain, and gray ramus communicans. Or, they can be used to target more peripheral nerves such as the suprascapular, splanchnic, and inferior calcaneal. Anesthetics, steroids, contrast and other fluid agents can be injected through a cannula's hollow interior, which also accepts an electrode for RF lesioning.
Cosman RF cannulae come in a wide variety of shapes and size to suit doctor preference and clinical objectives:
- Lengths: 5, 10, 15, 20 cm
- Tip Exposure: 2, 4, 5, 6, 10, 15, 20 mm
- Diameter: 22, 21, 20, 18, 16 gauge
- Straight or Curved
- Sharp or Blunt
- Siliconized (white insulation) or Standard (black insulation)
Each Cosman RF cannula features an ergonomic hub, a stiff steerable shaft, and specially tapered insulation at the tip to facilitate insertion and maneuvering. The cannula is colored coded by length and is compatible with all Cosman electrodes of matching length, including the reusable Nitinol (TCN), reusable stainless steel (CSK), and disposable (TCD) models.
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Siliconized Sharp Cannula (White Insulation) |
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Length (cm) |
Tip (mm) |
Gauge (ga) |
Part Number (10/pk) |
| Straight 5 |
4 | 22 | CC5422Z-P |
| Straight 10 | 5 | 22 | CC10522Z-P |
| Straight 10 |
10 | 22 | CC101022Z-P |
| Curved 10 |
10 | 22 | RFK-C101022SZ-P |
| Straight 10 |
10 | 20 | CC101020Z-P |
| Curved 10 |
10 | 20 | RFK-C101020SZ-P |
| Straight 15 |
10 | 20 | CC151020Z-P |
| Curved 15 |
10 | 20 | RFK-C151020SZ-P |
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16 Gauge Curved Sharp Cannula |
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Length (cm) |
Tip (mm) |
Gauge (ga) |
Part Number (10/pk) |
| 5 | 6 | 16 | RFK-C5616S-P |
| 5 | 10 | 16 | RFK-C51016S-P |
| 10 | 6 | 16 | RFK-C10616S-P |
| 10 | 10 | 16 | RFK-C101016S-P |
| 15 | 6 | 16 | RFK-C15616S-P |
| 15 | 10 | 16 | RFK-C151016S-P |
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Straight Sharp Cannula |
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Length (cm) |
Tip (mm) |
Gauge (ga) |
Part Number (10/pk) |
| 5 | 4 | 22 | CC5422-P |
| 5 |
4 | 22 | CC5422Z-P Siliconized |
| 5 | 4 | 21 | CC5421-P |
| 5 | 10 | 21 | CC51021-P |
| 10 | 2 | 22 | CC10222-P |
| 10 | 5 | 22 | CC10522-P |
| 10 | 5 | 22 | CC10522Z-P Siliconized |
| 10 | 5 | 21 | CC10521-P |
| 10 | 5 | 20 | CC10520-P |
| 10 | 5 | 18 | CC10518-P |
| 10 | 10 | 22 | CC101022-P |
| 10 | 10 | 22 | CC101022Z-P Siliconized |
| 10 | 10 | 21 | CC101021-P |
| 10 | 10 | 20 | CC101020-P |
| 10 | 10 | 20 | CC101020Z-P Siliconized |
| 10 | 10 | 18 | CC101018-P |
| 15 | 5 | 20 | CC15520-P |
| 15 | 5 | 18 | CC15518-P |
| 15 | 10 | 20 | CC151020-P |
| 15 | 10 | 20 | CC151020Z-P Siliconized |
| 15 | 10 | 18 | CC151018-P |
| 15 | 15 | 20 | CC151520-P |
| 15 | 20 | 20 | CC152020-P |
| 20 | 5 | 20 | CC20520-P |
| 20 | 10 | 20 | CC201020-P |
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Curved Sharp Cannula |
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Length (cm) |
Tip (mm) |
Gauge (ga) |
Part Number (10/pk) |
| 5 | 4 | 22 | RFK-C5422S-P |
| 5 | 6 | 16 | RFK-C5616S-P |
| 5 | 10 | 16 | RFK-C51016S-P |
| 10 | 5 | 20 | RFK-C10520S-P |
| 10 | 5 | 18 | RFK-C10518S-P |
| 10 | 6 | 16 | RFK-C10616S-P |
| 10 | 10 | 22 | RFK-C101022S-P |
| 10 | 10 | 22 | RFK-C101022SZ-P Siliconized |
| 10 | 10 | 20 | RFK-C101020S-P |
| 10 | 10 | 20 | RFK-C101020SZ-P Siliconized |
| 10 | 10 | 18 | RFK-C101018S-P |
| 10 | 10 | 16 | RFK-C101016S-P |
| 15 | 5 | 20 | RFK-C15520S-P |
| 15 | 5 | 18 | RFK-C15518S-P |
| 15 | 6 | 16 | RFK-C15616S-P |
| 15 | 10 | 20 | RFK-C151020S-P |
| 15 | 10 | 20 | RFK-C151020SZ-P Siliconized |
| 15 | 10 | 18 | RFK-C151018S-P |
| 15 | 10 | 16 | RFK-C151016S-P |
| 15 | 15 | 20 | RFK-C151520S-P |
| 20 | 5 | 20 | RFK-C205020S-P |
| 20 | 10 | 20 | RFK-C201020S-P |
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Curved Blunt Cannula |
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Length (cm) |
Tip (mm) |
Gauge (ga) |
Part Number (10/pk) |
| 10 |
5 | 20 | RFK-C10520B-P |
| 10 |
10 | 20 | RFK-C101020B-P |
| 15 |
5 | 20 | RFK-C15520B-P |
| 15 |
10 | 20 | RFK-C151020B-P |
Straight and Curved Cannula Brochure (CC, RFK)
* NeuroTherm, NT1000, NT1100, NT2000, NT500, NT250 are trademarks or registered trademarks of NeuroTherm, Inc.
* Cotop, CXE, CX, RCN, SMK, CdisK are trademarks or registered trademarks of Cotop International B.V. or NeuroTherm, Inc.
* Stryker, MultiGen are trademarks or registered trademarks of Stryker Corporation.
* Kimberly-Clark, ThoraCool, TransDiscal, TransDiscal System, SInergy, SInergy System are trademarks or registered trademarks of Kimberly-Clark Worldwide, Inc.
* Baylis, Baylis Medical, BMC are a trademarks or registered trademarks of Baylis Medical Company, Inc. or Kimberly-Clark Worldwide, Inc.
* Radionics, CRW, BRW are trademarks or registered trademarks of Integra Radionics, Inc.
* RFG-3C, RFG-3C plus, Disctrode, Valleylab are trademarks or registered trademarks of Covidien AG.
