	US 11,986,616 B2
	Access port system for intrathecal drug delivery with self-adjusting catheter length
Pericles Calias, Melrose, MA (US); and Michel Morency, Boxborough, MA (US)
Assigned to IMOTIK BIOSOLUTIONS LLC
Filed by IMOTIK BIOSOLUTIONS LLC, Acton, MA (US)
Filed on Nov. 14, 2022, as Appl. No. 18/055,295.
Application 18/055,295 is a continuation of application No. 16/769,134, granted, now 11,504,515, previously published as PCT/US2019/061454, filed on Nov. 14, 2019.
Claims priority of provisional application 62/767,927, filed on Nov. 15, 2018.
Prior Publication US 2023/0076913 A1, Mar. 9, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A61M 39/02 (2006.01); A61M 39/04 (2006.01)

CPC A61M 39/0208 (2013.01) [A61M 39/04 (2013.01)]

13 Claims

1. An access port device for intrathecal drug delivery in a subject in need thereof, the access port device comprising a peripheral wall running along a portion of an exterior edge of a bottom of the access port device forming a catheter compartment, wherein a catheter, secured to the access port device, has a portion of a proximal portion of the catheter looped one or more times and contained within the catheter compartment and, after the device has been implanted in the subject, the catheter is extensible outside the catheter compartment to increase a length of a distal portion of the catheter or is retractable inside the compartment to decrease the length of the distal portion of the catheter.