Drop counter

Details Drop counter Drop counter

2011-04-05

2011-04-05

Lucchesi, Nicholas D (Department: 3763)

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

C604S065000

Reexamination Certificate

active

07918834

ABSTRACT:
A liquid flow control system for use with infusion sets of the type comprising a liquid supply, a drip chamber8downstream of the liquid supply for forming liquid drops and a flexible tube7connecting the drip chamber with an injection needle, the system comprising a drop sensor4adapted for being arranged adjacent the drip chamber for sensing the passage of drops through the drip chamber, a valve19adapted for controlling the flow of the liquid through the tube, valve activating means for activating the valve, electrical circuits for registering the rate of drop formation and controlling the valve activating means, and a battery for powering the drop sensor, the electrical circuits and the valve activating means, the drop sensor, the valve, the valve activating means, the electrical circuits and the battery being mounted on or in a common housing having housing attachment means for releasably attaching the housing to the flexible tube.

REFERENCES:
patent: 4038982 (1977-08-01), Burke et al.
patent: 4346606 (1982-08-01), Cannon et al.
patent: 4496351 (1985-01-01), Hillel et al.
patent: 4507112 (1985-03-01), Hillel et al.
patent: 4525163 (1985-06-01), Slavik et al.
patent: 4583975 (1986-04-01), Pekkarinen et al.
patent: 4623331 (1986-11-01), Cewers et al.
patent: 4634426 (1987-01-01), Kamen
patent: 4775368 (1988-10-01), Iwatschenko
patent: 5045069 (1991-09-01), Imparato
patent: 5152424 (1992-10-01), Weinreb et al.
patent: 5166667 (1992-11-01), Jen
patent: 5186057 (1993-02-01), Everhart
patent: 5415641 (1995-05-01), Yerlikaya et al.
patent: 5439442 (1995-08-01), Bellifemine
patent: 5938543 (1999-08-01), McGeeney et al.
patent: 5982289 (1999-11-01), Kingsley et al.
patent: 6491659 (2002-12-01), Miyamoto
patent: 2008/0139997 (2008-06-01), Sacchetti
patent: 0 321 996 (1989-06-01), None
patent: 0 493 741 (1992-07-01), None
patent: 0 718 001 (1996-06-01), None
patent: 2 272 435 (1975-12-01), None
patent: 1 520 606 (1978-08-01), None
patent: WO 02/40084 (2002-05-01), None
International Search Report for corresponding International Application PCT/EP2009/052478 mailed Jun. 5, 2009.

Affiliated with

Also associated with

Rating

Drop counter does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Drop counter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Drop counter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2711686