US 11,701,464 B2
Drawing drug from a vial
Andrei Yosef, Even Yehuda (IL); Shaul Eitan, Hofit (IL); Boaz Eitan, Hofit (IL); and Ori Ben-David, Tel-Aviv (IL)
Assigned to EITAN MEDICAL LTD., Netanya (IL)
Filed by EITAN MEDICAL LTD., Netanya (IL)
Filed on Jul. 23, 2020, as Appl. No. 16/936,471.
Application 16/936,471 is a continuation of application No. 16/591,848, filed on Oct. 3, 2019, granted, now 11,357,909.
Claims priority of provisional application 62/805,021, filed on Feb. 13, 2019.
Claims priority of provisional application 62/741,572, filed on Oct. 5, 2018.
Prior Publication US 2020/0353159 A1, Nov. 12, 2020
Int. Cl. A61M 5/142 (2006.01); A61M 5/162 (2006.01); A61M 5/172 (2006.01); A61M 5/158 (2006.01)
CPC A61M 5/14216 (2013.01) [A61M 5/162 (2013.01); A61M 5/172 (2013.01); A61M 2005/1583 (2013.01); A61M 2005/1585 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An apparatus for delivering a therapeutic substance to a subject, the apparatus comprising:
a therapeutic substance delivery device:
(a) configured to engage with a therapeutic substance reservoir, and
(b) comprising a pump configured to draw the therapeutic substance from the reservoir into a pump chamber disposed within the therapeutic substance delivery device without changing internal dimensions of the reservoir, a volume of the therapeutic substance within the pump chamber varying in response to changes in internal dimensions of the pump chamber;
an orientation sensor coupled to the therapeutic substance delivery device and configured to generate an output indicative of an orientation of the therapeutic substance delivery device with respect to gravity; and
control circuitry configured to drive the pump to:
(a) calculate a volume of the therapeutic substance disposed within the reservoir,
(b) drive the pump to draw the therapeutic substance into the pump chamber in response to (i) the calculated volume of the therapeutic substance disposed within the reservoir, in combination with (ii) an output from the orientation sensor that the therapeutic substance delivery device is in an orientation that allows the therapeutic substance to be drawn from the reservoir, and
(c) drive the pump to deliver the therapeutic substance from the pump chamber to the subject.
 
12. A method for delivering a therapeutic substance to a subject, the method comprising:
using a therapeutic substance delivery device:
drawing the therapeutic substance from a therapeutic substance reservoir into a pump chamber of the therapeutic delivery device, and
delivering the therapeutic substance from the pump chamber to the subject,
the drawing of the therapeutic substance being:
(i) without changing internal dimensions of the reservoir, and
(ii) substantially in response to (a) a volume of therapeutic substance in the reservoir, in combination with (b) an orientation of the therapeutic substance delivery device.