Infusion device and inlet structure for same

Details Infusion device and inlet structure for same Infusion device and inlet structure for same

2007-03-06

2007-03-06

Mendez, Manuel (Department: 3763)

Surgery

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

Treating material introduced into or removed from body...

Reexamination Certificate

active

10034628

ABSTRACT:
An infusion device includes a disc-shaped housing that is made from a biocompatible material. The housing contains a reservoir for holding a volume of infusion medium, such as a medication to be administered to the patient. The inlet structure is coupled in flow communication with the reservoir, to allow the reservoir to be filled or re-filled. The housing has an outlet through which the infusion medium may be expelled. Any one or combination of aspects may be employed to minimize or reduce the required thickness T of the inlet structure and of the infusion device, including: the selection of a convergence angle of the cone-shaped depression to be within the range of about 60° and 180° and, preferably about 150°; a septum having one or more sealing ribs or a recess for receiving a support ring, to allow the septum to be made relatively thin without compromising sealing or support functions; a cup member having grooves and indentations formed in its inner surfaces, to improve flow of infusion medium without added structural thickness; a valve member having a relatively shallow needle-receiving depression or having a recess for receiving and sharing thickness with a the spring; and an inlet configuration which accommodates a needle having an opening located near its tip and, thus, employs a relatively short stroke of the valve member between closed and open states of the valve member.

REFERENCES:
patent: 4193397 (1980-03-01), Tucker et al.
patent: 4468221 (1984-08-01), Mayfield
patent: 4573994 (1986-03-01), Fischell et al.
patent: 4697622 (1987-10-01), Swift et al.
patent: 4772263 (1988-09-01), Dorman et al.
patent: 5167633 (1992-12-01), Mann et al.
patent: 5176644 (1993-01-01), Srisathapat et al.
patent: 5328465 (1994-07-01), Kratoska et al.
patent: 5514103 (1996-05-01), Srisathapat et al.
patent: 5527307 (1996-06-01), Srisathapat et al.
patent: 6193477 (2001-02-01), Falk et al.
PCT International Search Report as issued in International Application No. PCT/US02/28282, Mailing date Dec. 12, 2002.

Affiliated with

Also associated with

Rating

Infusion device and inlet structure for same does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Infusion device and inlet structure for same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Infusion device and inlet structure for same will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3783190