1
David S Utterberg: Universal connector. Garrettson Ellis, December 10, 1991: US05071413 (131 worldwide citation)

A universal connector is described, being capable of both connection with female luer connectors and penetration of resealable-diaphragm connection sites. The connector comprises a tubular member defining a first tubular section having a distal end capable of resealably penetrating a latex resealabl ...


2
David S Utterberg: Male luer lock medical fitting. Garrettson Ellis, September 10, 1991: US05047021 (109 worldwide citation)

A male luer lock fitting, having an elongated nozzle and an internally threaded locking ring mounted around the nozzle. The locking ring has complete freedom to rotate about the nozzle axis, and limited freedom to translate along the nozzle axis. The length of the nozzle which extends outward from l ...


3
David S Utterberg: Blow molded venous drip chamber for hemodialysis. Medisystems Technology Corporation, Gerstman Ellis & McMillin, November 26, 1996: US05578070 (90 worldwide citation)

A blow molded, rigid plastic venous chamber for hemodialysis, for use in a venous hemodialysis set. The chamber defines a plurality of first access ports adjacent to a first end thereof. A second access port is provided at an opposed end. A tubular plastic filter is positioned in close-fitting relat ...


4
David S Utterberg: Needle protector sheath. Gerstman Ellis & McMillin, October 8, 1996: US05562636 (80 worldwide citation)

A needle protector sheath comprises a body having a top wall, sidewalls and open ends. A slot is formed in each sidewall to slidingly receive a needle wing extending through each of the slots. Typically the slots extend through one end of the protector sheath. The protector sheath also defines an op ...


5
David S Utterberg, William J Schnell: Dialysis pressure monitoring with clot suppression. DSU Medical Corporation, Garrettson Ellis, Seyfarth Shaw, June 29, 2004: US06755801 (77 worldwide citation)

Pressure is sensed in blood flow tubing by placing an aqueous, preferably isotonic, substantially cell-free solution into branch connection tubing (branch tube) that connects in branching relation with the blood flow tubing at one end. The branch connection tubing may also connect in use with a pres ...


6
David S Utterberg: Blood air trap chamber. Medisystems Technology Corporation, Gerstman Ellis & McMillin, July 1, 1997: US05643205 (73 worldwide citation)

A blood chamber for hemodialysis sets which comprises a sealed, flattened plastic parison, typically from blow molding, which defines a double reservoir chamber, each having at least a first conduit communicating with a first end of the reservoir chamber through a first port. The conduit extends lat ...


7
David S Utterberg: Automatic priming of blood sets. DSU Medical Corporation, Gerstman Ellis & McMillin, September 14, 1999: US05951870 (71 worldwide citation)

A blood processing system such as a dialysis system may be primed by passing priming solution in a first direction of flow through at least one of the sets, to cause the priming solution to enter an in-line chamber carried by the one set in a flow direction that is retrograde to the normal direction ...


8
David S Utterberg: Luer connector with integral closure. Gerstman Ellis & McMillin, January 31, 1995: US05385372 (70 worldwide citation)

A female luer connector comprises a tube having an open, outer end in a luer-tapered bore communicating with the outer end. The tube carries a side arm that from a positioned spaced longitudinally from the open, outer end, with the side arm extending both radially outwardly from the tube and in gene ...


9
David S Utterberg, Neil J Sheehan: Guarded winged needle assembly. David S Utterberg, May 12, 1992: US05112311 (69 worldwide citation)

A slotted guard for locking a needle in a shielded position as the needle is removed from a patient, and a guarded winged needle assembly including not only such a slotted, locking guard, but also a needle (with a winged hub attached thereto) slidably mounted within the guard. Preferably, the guard' ...


10
David S Utterberg: Blow molded venous drip chamber for hemodialysis. Gerstman Ellis & McMillin, July 19, 1994: US05330425 (67 worldwide citation)

A blow molded, rigid plastic venous chamber for hemodialysis, for use in a venous hemodialysis set. The chamber defines a plurality of first access ports adjacent to a first end thereof. A second access port is provided at an opposed end. A tubular plastic filter is positioned in close-fitting relat ...