	US 12,186,528 B2
	Infusion pump cassette latch
Michael Yachnis, Netanya (IL); Amir Rasowsky, Yakir (IL); and Gidi Pesach, Kfar Vitkin (IL)
Assigned to EITAN MEDICAL LTD., Netanya (IL)
Appl. No. 17/433,439
Filed by EITAN MEDICAL LTD., Netanya (IL)
PCT Filed Mar. 4, 2020, PCT No. PCT/IL2020/050247 § 371(c)(1), (2) Date Aug. 24, 2021, PCT Pub. No. WO2020/178825, PCT Pub. Date Sep. 10, 2020.
Claims priority of provisional application 62/814,001, filed on Mar. 5, 2019.
Prior Publication US 2022/0040403 A1, Feb. 10, 2022
Int. Cl. A61M 5/142 (2006.01); A61M 5/14 (2006.01); F04B 43/12 (2006.01); F04B 53/16 (2006.01); F04B 53/22 (2006.01)

CPC A61M 5/142 (2013.01) [A61M 5/1413 (2013.01); A61M 2205/12 (2013.01); A61M 2205/121 (2013.01); F04B 43/12 (2013.01); F04B 43/1284 (2013.01); F04B 53/16 (2013.01); F04B 53/22 (2013.01)]

11 Claims

1. Apparatus for delivering a fluid to a subject through infusion tubing, the apparatus comprising:

(A) a tube cassette configured to receive the infusion tubing, the tube cassette shaped to define a locking surface;

(B) a pump comprising a latch,

(i) the tube cassette being configured to be removably coupled to the pump, and

(ii) the latch being configured to (a) engage with the locking surface and (b) lock the tube cassette in a preset position with respect to the pump when the tube cassette is coupled to the pump; and

(i) the mechanical stop being positioned to stop motion of the tube cassette in a first direction, such that when the motion of the tube cassette in the first direction is stopped by the mechanical stop, the tube cassette has moved past the preset position in the first direction, and

(ii) the latch being configured to:

(a) until the motion of the tube cassette is stopped by the mechanical stop, allow motion of the tube cassette past the preset position in the first direction,

(b) automatically move from an open position to a cassette-withdrawal-inhibiting position upon engagement of the latch with the locking surface, and

(c) subsequently, lock the tube cassette in the preset position by pushing the tube cassette in a second direction opposite the first direction, from past the preset position to the preset position.