1
Harvey R Moorehead: Medical layered peel away sheath and methods. Catheter Technology Corporation, Workman Nydegger Jensen, January 8, 1991: US04983168 (177 worldwide citation)

A layered peel away hollow sheath for temporarily creating a passageway into a desired body site of a medical patient for placement of one end of an indwelling device at the body site through the sheath, the sheath wall comprising at least two layers, the inside layer being cylindrical and the outsi ...


2
Colin J Nichols, Gregory N Nordgren, Harvey R Moorehead: Catheters and methods. Catheter Technology Corporation, Lynn G Foster, June 28, 1988: US04753640 (156 worldwide citation)

Catheter tubes of elastomeric material having novel lumen shapes which prevent occlusion and accommodate continued liquid flow even when kinked. Also, catheter tube slit valves are disclosed, the walls of which are not chemically weakened. Symmetrical and asymmetrical versions of said slit valves ar ...


3
Thomas A Wiita, Harvey R Moorehead, Karl L Schatten: Inseparable port/catheter tube assembly and methods. Catheter Technology, Lynn G Foster, September 20, 1988: US04772270 (135 worldwide citation)

A port/catheter tube assembly which insures a stable essentially inseparable connection between the hollow male outlet stem of the port and the proximal end of the catheter tube, thereby insuring a continual supply of medication to the desired patient site while preventing inadvertent harm caused by ...


4
Colin J Nichols, Gregory N Nordgren, Harvey R Moorehead: Catheter with novel lumens shapes. C R Bard, Workman Nydegger & Jensen, November 3, 1992: US05160325 (120 worldwide citation)

Catheter tubes of elastomeric material having novel lumen shapes which prevent occlusion and accommodate continued liquid flow even when kinked. Also, catheter tube slit valves are disclosed, the walls of which are not chemically weakened. Symmetrical and asymmetrical versions of said slit valves ar ...


5
Colin J Nichols, Gregory N Nordgren, Harvey R Moorehead: Catheter with slit valve. Catheter Technology Corporation, Workman Nydegger & Jensen, February 26, 1991: US04995863 (108 worldwide citation)

Catheter tubes of elastomeric material having novel lumen shapes which prevent occlusion and accommodate continued liquid flow even when kinked. Also, catheter tube slit valves are disclosed, the walls of which are not chemically weakened. Symmetrical and asymmetrical versions of said slit valves ar ...


6
Thomas A Wiita, Harvey R Moorehead, Karl L Schatten: Catheter tube coupling assembly and methods. Catheter Technology, Lynn G Foster, September 20, 1988: US04772276 (91 worldwide citation)

A port/catheter tube assembly which insures a stable essentially inseparable connection between the hollow male outlet stem of the port and the proximal end of the catheter tube, thereby insuring a continual supply of medication to the desired patient site while preventing inadvertent harm caused by ...


7
Harvey R Moorehead: Hub assemblies and extensions for indwelling catheter tubes and method. Lynn G Foster, October 15, 1985: US04547194 (63 worldwide citation)

Apparatus and methods are disclosed by which (a) the exposed length of an indwelling medical catheter tube is permanently extended, (b) a damaged exposed end of an indwelling catheter tube is repaired and thereby once more rendered safe and effective, and (c) a hub is easily and permanently connecte ...


8
Harvey R Moorehead: Intravenous catheter apparatus and method. Warner Lambert Company, David B Ehrlinger, Frank S Chow, Stephen Raines, December 11, 1979: US04177809 (53 worldwide citation)

An intravenous catheter apparatus comprising an intravenous catheter tube, a manually guidable circumferentially deformable elastomeric bore-defining tubular inserter integral with and in axial alignment with the catheter tube for use with a patient, and a needle concentric within the catheter tube ...


9
Harvey R Moorehead: Blood gas sampler. Ballard Medical Products, Lynn G Foster, July 15, 1980: US04212309 (20 worldwide citation)

A blood-gas sampler in the nature of a syringe comprising a hollow internally stepped cylindrical barrel and a coaxial stepped plunger having one or more nesting stepped seals at the leading end thereof, the assembly accommodating arterial blood aspiration causing retraction of the plunger within th ...


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