Non-reactive composite sealing barrier

Details Non-reactive composite sealing barrier Non-reactive composite sealing barrier

1991-08-28

1994-01-18

Hafer, Robert A.

Surgery

Container for blood or body treating material, or means used...

215DIG3, 215364, B65D 8500

Patent

active

052796060

ABSTRACT:
An elastomeric pharmaceutical barrier (2, 50, 75, 100) formed as a piston, a stopper, or a cap-like gasket and diaphragm structure for use in pharmaceutical containers such as vials, syringes, cartridges and the like. The barrier combines a main body (4, 52, 76, 102) of butyl or silicone based rubber to provide a fluid seal mechanism and includes a pharmaceutically inert insert (6, 54, 78, 104) which provides a substantial portion (40, 68, 92, 130) of a surface of the barrier to be exposed to the pharmaceutical. The non-reactive insert can be fabricated from polytetrafluoroethylene, glass, stainless steel or ceramic material and reduces the surface area of rubber exposed to pharmaceutical contact, therefore making the applicable face of the barrier substantially inert and nonreactive to the contacting pharmaceutical. The insert can be made to incorporate a guide (62, 66) and channel (64) for needle canula (74) access as well as a pressure valve system (118, 126, 132, 136) to allow fluid flow through the barrier structure.

REFERENCES:
patent: 2649090 (1953-08-01), Parsons et al.
patent: 3198368 (1965-08-01), Kirkland et al.
patent: 3313439 (1967-04-01), Robinson
patent: 3552591 (1971-01-01), Wimmer
patent: 3760969 (1973-09-01), Shimamoto et al.
patent: 4569457 (1986-02-01), Hatakeyama et al.
patent: 4614276 (1986-09-01), Ihara et al.
patent: 4915243 (1990-04-01), Tatsumi et al.
patent: 4973504 (1990-11-01), Romberg et al.
patent: 5114411 (1992-05-01), Haber et al.

Affiliated with

Also associated with

Rating

Non-reactive composite sealing barrier does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Non-reactive composite sealing barrier, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Non-reactive composite sealing barrier will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1133360