US 7,611,496 B2
Liquid medicine-measuring device for liquid medicine-injecting device
Keiichi Yamada, Sakai (Japan); Hajime Nakazawa, Kishiwada (Japan); Koichi Aida, Izumi (Japan); and Yoshinori Nakata, Takaishi (Japan)
Assigned to Daiken Iki Kabushiki Kaisha, (Japan)
Appl. No. 10/532,697
PCT Filed Oct. 27, 2003, PCT No. PCT/JP03/13680
§ 371(c)(1), (2), (4) Date Apr. 26, 2005,
PCT Pub. No. WO2004/039437, PCT Pub. Date May 13, 2004.
Claims priority of application No. 2002-316435 (JP), filed on Oct. 30, 2002.
Prior Publication US 2006/0150725 A1, Jul. 13, 2006
Int. Cl. A61M 5/00 (2006.01)
U.S. Cl. 604—246  [73/149; 73/1.13; 177/168; 177/169] 11 Claims
OG exemplary drawing
 
1. A medical liquid feeding unit comprising:
a medical liquid feeding device including an expandable container, an inlet port for supplying a medical liquid into the expandable container therethrough, and a feed duct for feeding to a patient the medical liquid discharged from one end of the expandable container by a contractive force of the expandable container, the medical liquid feeding device further including a hung member;
a medical liquid meter for quantifying a remaining amount of the medical liquid stored in the expandable container, the medical liquid meter including a weight-measuring device for measuring the weight of the medical liquid feeding device and a suspender provided on the weight-measuring device, the suspender being configured for disengageably engaging the hung member for suspending the medical liquid feeding device, and the weight of the medical liquid feeding device being measured under a condition that the medical feeding device is suspended by the suspender; and
a cord-shaped connection member adapted, when the suspender is disengaged from the medical liquid feeding device, to maintain the connection between the medical liquid meter and the medical liquid feeding device therethrough.