Integrated needle-catheter systems and methods of use
OwnerChristopher Zarembinskiinventor
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Abstract
In some embodiments, disclosed herein are systems and methods of treating a patient that can include the steps of accessing the sphenopalatine fossa, and cannulating the inferior orbital fissure from the sphenopalatine fossa to access the retro-orbital space. The sphenopalatine fossa can be accessed via various routes, including percutaneously. Accessing the sphenopalatine fossa can include the step of inserting a needle-catheter system into the sphenopalatine fossa. Integrated needle-catheter systems as described herein can also be configured to access the trigeminal ganglion, epidural space, intrathecal space, and other desired anatomical locations.
Claims10
A needle-catheter system comprising:
- a needle for creating percutaneous access, the needle comprising a central lumen, an elongate metal shaft portion having a proximal nondeflectable segment and a distal deflectable segment, and a sharp distal tip;
- a catheter for cannulation, the catheter comprising a central lumen and a catheter shaft, the needle-catheter system movable from a first configuration in which the catheter shaft is housed within the central lumen of the needle to a second configuration in which the catheter shaft extends distally beyond a distal end of the needle;
- one or more pull wires operably connected to a distal steerable segment for active steering, the distal steerable segment being a portion of the needle or the catheter;
- a catheter handle;
- and
- a collet lock operably connected distally to the catheter handle;
- and
- a collet nut configured to:
- engage with the collet lock when rotated in a first direction to lock an axial position of the catheter shaft relative to the catheter handle and/or the needle when the catheter is in the second configuration;
- and
- disengage from the collet lock when rotated in a second direction to unlock the axial position of the catheter shaft relative to the catheter handle and or the needle.
Dependencies are inferred from the claim text.