1
Leonard J DeCant Jr, Samir F Idriss: Programmable implantable infusate pump. Infusaid Corporation, Cesari and McKenna, April 17, 1984: US04443218 (374 worldwide citation)

A programmable implantable infusion pump includes a housing containing a variable volume infusate chamber and variable volume control fluid pressure and displacement reservoirs. A conduit conducts infusate from the chamber exteriorly of the housing. A restricted fluid path exists between the two res ...


2
Leonard J DeCant Jr, Samir F Idriss, Frank R Prosl: Variable flow implantable infusion apparatus. Infusaid Corporation, Cesari and McKenna, May 8, 1984: US04447224 (258 worldwide citation)

Implantable variable flow infusion apparatus comprises a collapsible infusate chamber having an outlet conduit leading to the infusion site by way of series-connected fixed and variable fluid flow restrictors. The infusate in the chamber is maintained under substantially constant pressure by a nonel ...


3
Samir F Idriss: Programmable valve pump. Shiley Infusaid, Sughrue Mion Zinn Macpeak and Seas, June 13, 1989: US04838887 (186 worldwide citation)

An implantable valve accumulator pump for the delivery of medication is disclosed. The implantable pump comprises a drug reservoir maintained a constant pressure vapor. The medication metering assembly comprises a fixed volume accumulator positioned between a pair of valves. The valves alternately o ...


4
Samir F Idriss: Constant pressure implantable pump reservoir. Infusaid, Sughrue Mion Zinn Macpeak & Seas, September 3, 1991: US05045064 (172 worldwide citation)

An implantable device uses shape memory alloy (SMA) as the driver to compress a reservoir thereby providing a constant pressure source fluid delivery device. The SMA may form either the reservoir itself by appropriate shaped sheets or it may form bands around a flexible reservoir member. The reservo ...


5
Samir F Idriss, Joshua Makower: Passive shuttle metering device for implantable drug delivery system. Infusaid, Sughrue Mion Zinn Macpeak & Seas, May 4, 1993: US05207666 (154 worldwide citation)

A fluid metering device useful in implantable drug delivery systems is coupled between a pressurized fluid source and an outlet conduit to provide discrete flow pulses at a predetermined rate. The metering device consists of a first movable member constrained within a housing and a second movable me ...


6
Samir F Idriss: Implantable drug infusion reservoir having fluid impelling resilient foam member. Infusaid, Sughrue Mion Zinn Macpeak & Seas, January 5, 1993: US05176641 (77 worldwide citation)

An implantable infusion reservoir having a resilient foam member in a rigid housing to urge fluid to an implantation site. The foam member compresses upon charging and then expands to maintain a predetermined pressure characteristic within the fluid. The foam replaces the previously used two-phase p ...


7
Samir F Idriss: Constant pressure variable flow pump. Shiley Infusaid, Sughrue Mion Zinn Macpeak & Seas, June 5, 1990: US04931050 (61 worldwide citation)

A variable flow constant pressure implantable pump employs an in-line needle restrictor having a variable insertion distance in a capillary. The degree of insertion determines the effective restriction within the capillary. The restrictor may be repositioned following implantation to vary the drug d ...


8
Paul F Burke, Samir F Idriss: Accumulator for implantable pump. Infusaid, Sughrue Mion Zinn Macpeak & Seas, January 25, 1994: US05281210 (36 worldwide citation)

An accumulator for an implantable infusion system employs a pair of separated diaphragms movable in unison by a transfer fluid disposed therebetween. A first chamber receives infusate in metered amounts and dispenses the contents as a function of toggled valve operation. During filling, the first di ...



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