1
Lawrence A Weinstein: Hemostatis valve comprising an elastomeric partition having opposed intersecting slits. Cordis Corporation, George H Gerstman, December 2, 1986: US04626245 (297 worldwide citation)

A hemostasis valve for a catheter or the like may be a self-sealing, penetrable barrier which comprises an elastomeric partition made of an integral piece. A first slit is cut on the first side of the partition, while a second slit is cut in a second, opposite side of the partition. The first and se ...


2
Rolando Sierra, Lawrence A Weinstein: Wound closure apparatus and method for its use. Cordis Corporation, Lockwood Alex Fitzgibson & Cummings, March 5, 1996: US05496332 (285 worldwide citation)

A wound closure apparatus and a method for its use are described. The apparatus includes a trilumen tubular member dimensioned to be positioned within a blood vessel through a conventional catheter sheath introducer. A mesh assembly extends longitudinally through the center lumen of the tubular memb ...


3
Lawrence A Weinstein, Richard A Hillstead: Apparatus and method for delivering a vessel plug into the body of a patient. Cordis Corporation, Lockwood Alex Fitzgibbon & Cummings, December 6, 1994: US05370660 (235 worldwide citation)

An apparatus and method for delivering a vessel plug into a wound or incision in a living patient are described. The apparatus includes an expandable porous mesh mounted at the distal end of an elongate catheter. The expandable mesh may be positioned within a blood vessel or a target organ and expan ...


4
Lawrence A Weinstein, Roberta D Goode: Catheter introducer with fluid chamber valve. Cordis Corporation, Gerstman Ellis & McMillin, October 24, 1995: US05460616 (157 worldwide citation)

A catheter introducer comprises a tubular sheath having an axis, and a housing carried on one end of the sheath. The housing encloses a fluid-filled chamber and carries a pair of valves aligned along the axis, the valves being at opposed ends of the fluid-filled chamber and communicating therewith. ...


5
Roberta D Goode, Lawrence A Weinstein: Enhanced sheath valve. Cordis Corporation, Gerstman Ellis & McMillin, September 27, 1994: US05350363 (153 worldwide citation)

A valve comprises an elastomeric partition member having first and second opposed faces, the valve being adapted for securement in a housing. Typically, one or both of the faces define a recess of substantially rectangular cross section to reduce the central thickness of the partition member, the re ...


6
George Puderbaugh, Fredrick M Richards, Lawrence A Weinstein, Deborah A Laun, David T Middleton Jr: Metered dose inhaler cloud chamber. Diemolding Corporation, August E Hancock & Estabrook Roehrig Jr, February 22, 2000: US06026807 (85 worldwide citation)

A cloud chamber for use with a source of pressurized medication in a MDI system wherein the cloud chamber has a unique one-way inspiratory air and one-way expiratory air valving system which utilizes the same valve body to provide both functions through utilization of different parts of the same val ...


7
Jennifer M Foran, Lawrence A Weinstein, Fredrick M Richards, Christopher T Zirps, Robert H Elden: Positive expiratory pressure device. DHD Healthcare Corporation, August E Roehrig Jr, Hancock & Estabrook, June 24, 2003: US06581598 (70 worldwide citation)

An enhanced PEP therapy device which provides a variable frequency and variable magnitude positive expiratory pressure by utilizing a nonlinear orifice for adjusting and maintaining a desired positive expiratory pressure oscillation in accordance with a predetermined pressure range of a patient&apos ...


8
Richard K Pelerossi, Gregory S King, Jennifer M Foran, Lawrence A Weinstein, Fredrick M Richards, Christopher T Zirps, Robert H Elden: Positive expiratory pressure device with bypass. DHD Healthcare Corporation, August E Roehrig Jr, Hancock & Estabrook, August 17, 2004: US06776159 (57 worldwide citation)

An oscillatory positive expiratory pressure respiratory therapy device which may be incorporated into the expiratory limb of a ventilator circuit. Accordingly, this device allows a patient on a ventilator to be subjected to positive expiratory pressure (PEP) therapy combined with airway oscillation ...


9
Lawrence A Weinstein, Roberta D Goode: Hemostasis valve for catheter introducer having thickened central partition section. Cordis Corporation, Gerstman Ellis & McMillin, July 23, 1996: US05538505 (46 worldwide citation)

A hemostasis valve for a catheter such as a catheter sheath introducer comprises an elastomeric partition extending across an aperture in a hub carried by a catheter. The partition defines an annular, peripheral area which is secured to the hub. The partition further defines a second area positioned ...


10
Rex A Niles, Lawrence A Weinstein, Stephen D Diehl: Continuous positive airway pressure therapy device. DHD Healthcare Corporation, August E Roehrig Jr, Hancock & Estabrook, July 3, 2001: US06253766 (39 worldwide citation)

An improved continuous positive airway pressure therapy device including a ring orifice through which compressed air or oxygen is introduced to effectively amplify the air flow to the patient by drawing ambient air into the device inlet for maintaining a continuous positive pressure of a patient&apo ...