1
Ronald B Luther: Angioplasty device. Angiobrade Partners, Willie Krawitz, March 17, 1987: US04650466 (693 worldwide citation)

An angioplasty device is disclosed comprising a woven tube of metal or plastic fibers and a retraction stylet that are attached at one end to a catheter tube for insertion into a vein, artery and the like for the removal of plaque and similar material. One or more guide wires or a stylet may be atta ...


2
Ronald B Luther: Connector with one-way septum valve, and assembly. Willie Krawitz, June 27, 1989: US04842591 (306 worldwide citation)

A one-way septum valve in a connector device to maintain sterility is provided. The device prevents the backward flow of blood and body fluids through the connector to an injection device such as a syringe, I.V. unit, and the like.


3
Ronald B Luther: Intravascular catheter assembly incorporating needle tip shielding cap. Luther Medical Products, Stetina and Brunda, October 23, 1990: US04964854 (211 worldwide citation)

Disclosed is an "over-the-needle" type catheter assembly which incorporates a shield operative to prevent inadvertant needle trauma after the needle has been withdrawn from the surrounding catheter sheath. The device of the invention comprises a tubular catheter sheath having an elongate piercing me ...


4
Ronald B Luther, Pradip V Choksi: Assembly of needle catheter protector. Luther Medical Products, Stetina and Brunda, August 9, 1988: US04762516 (173 worldwide citation)

An assembly of a needle and a device for protecting the needle tip is disclosed. The assembly comprises an elongate housing which mounts the needle. A needle guard is slidably mounted within the housing and is adapted to be moved forward along the needle. Following use, the needle and housing are re ...


5
Ronald B Luther: Assembly of stylet and catheter. Luther Medical Products, Willie Krawitz, May 26, 1987: US04668221 (155 worldwide citation)

A grooved stylet having a puncture point aligned with the stylet axis is mounted through a catheter to form an assembly. The aligned puncture point enables more accurate piercing of a vein, and reduces the possibility of double piercing the vein.


6
Ronald B Luther, Pradip V Choksi: Assembly of needle and protector. Luther Medical Products, Stetina and Brunda, May 23, 1989: US04832696 (154 worldwide citation)

An assembly of a needle and a device for protecting the needle tip is disclosed. The assembly comprises an elongate housing which mounts the needle. A needle guard is slidably mounted within the housing and is adapted to be moved forward along the needle. Following use, the needle and housing are re ...


7
Ronald B Luther, Pradip V Choksi: Single hand actuated locking safety catheter and method of use. Luther Medical Products, Stetina and Brunda, August 21, 1990: US04950252 (153 worldwide citation)

An assembly of a needle, catheter, and a device for selectively protecting the needle tip from inadvertent needle sticks is disclosed, characterized by use of elongate housing, having a needle extending therefrom, and a needle guard adapted for sliding movement relative the housing. The needle guard ...


8
Craig M Whitehouse, Daniel R Snyder, Ronald B Luther: Assembly with septum fitting for connecting adaptor and fluid tube. DRS Infusion Systems, Luther Medical Products, Willie Krawitz, December 17, 1985: US04559043 (131 worldwide citation)

An assembly for connecting needles and catheters in I.V. applications, chemical analysis, etc., includes a leak proof, sterile, self-sealing septum from which the needle is inserted. When the needle is retracted from the septum, the septum will reseal and thus maintain a leak-proof, sterile seal. Th ...


9
Ronald B Luther: Dual lumen infusion/aspiration catheter. Luther Medical Products, Stetina Brunda & Buyan, September 10, 1996: US05554136 (115 worldwide citation)

A catheter having an elongate body has a first lumen extending therethrough. A concave wall is formed in the body proximate the distal end thereof such that the concave wall is a wall of the first lumen. A first slit is formed in the concave wall. The first slit opens in response to decreased fluid ...


10
Ronald B Luther: Needle guard, and assembly. Willie Krawitz, June 13, 1989: US04838871 (115 worldwide citation)

A needle guard is provided to protect against accidental needle stick injuries following use, and to provide a cover for the needle when shipping.