`
`Percutaneous vascular catheterisation, as described by Seldinger (Acta Radiologica, 38 [1953],
`368-376), has been used successfully for many years. The technique allows entry into an area
`without a cutdown and, because small gauge needles are used, there is minimal trauma to
`surrounding tissue. More recently, critical care physicians have applied the Seldinger technique
`to the introduction of various types of catheters.
`
`Seldinger Technique - Step 1
`
`Seldinger Technique - Step 2
`
`Seldinger Technique - Step 3
`
`Seldinger Technique - Step 4
`
`Seldinger Technique - Step 5
`
`Seldinger Technique - Step 6
`
`Step 1.
`Step 2.
`
`Step 3.
`
`Step 4.
`
`Step 5.
`Step 6.
`
`Insert needle into vessel.
`Straighten J-wire, using the adaptor, and insert into needle. Stabilise needle with the other
`hand at all times to prevent it from dislodging. Advance wire into vessel.
`Remove needle and wire cover. The guide wire needs to be securely held during the
`following procedures to limit further advancement into the vessel.
`Advance dilator over the wire 1 to 11/2 inches into insertion point and rotate back and
`forth. Remove dilator. This opens up the site to facilitate the introduction of the catheter.
`Advance catheter over the guide wire into the vessel.
`Remove guide wire, flush and secure catheter to animal with sutures. Wrap to provide
`additional stabilisation.
`
`27
`
`University of Maryland, Baltimore
`IPR2016-00208
`
`Exhibit 2009
`Page 1 of 1
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