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VID1-00709-EN | A | Retractable Cannulated Knife for Hip Capsulotomy

John Gualdoni

Human

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Retractable Cannulated Knife for Hip Capsulotomy

The Cannulated blade has a blunt tip on the end, and is calculated to accommodate either a 1.1 or a 1.5mm nitinol wire. The technique for inserting this into the joint is. You'll simply take your spinal needle, insert that through your portal, take the inner stylet out and insert your nitinol wire through that. You'll dilate once with your choice of a dilation option, either a 4.5 or a 5.0 dilator, and then simply take your Cannulated blade and insert it over top of the nitinol wire. You'll insert this into the joint space, allowing the blunt end of the 5.0mm diameter blade to insert through the capsular tissue and into the joint. You'll then remove your nitinol wire, and you'll take note that the red tab on the back is a safety tab to allow you to insert this into the joint, without prematurely exposing the blade through your capsular tissue and your joint space. When you're ready to perform your capsulotomy, you remove the red tab. Simply push the black button on the back of the device down and pull it back towards you to retract the sheath outside of your capsular tissues, exposing the sharp, straight blade. The device is disposable to guarantee and ensure that the blade will be sharp for each pass and case. When you're ready to perform your capsulotomy, you'll simply move the blade back and forth to cut your capsular structures. It's important to note that the black tab on the back moves the sheath and not the blade, so you're never going to be pushing the blade into the joint space. Rather, you'll be removing the sheath backwards and retracting the sheath outside of the capsular structure. When you're ready to remove the blade, you'll then push the sheath back over top of the blade, covering the blade from doing any subsequent damage. You'll then take your nitinol wire, insert that back through the inner cannulation and remove the device from the joint space. You can then flip portals and finish off your capsulotomy through your other arthroscopic portal.

Retractable Cannulated Knife for Hip Capsulotomy

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