Medical Evaluation Devices & Instruments Corp.

Johns Hopkins University

Triangle Research and Development Corp.

William M Kline

David P Colvin

Raymond A Whitney

Bernard R Marsh

Ronald R Rizzo

Mark E Orlosky

A body lumen measuring instrument for insertion into a body passageway such as a bronchial tube or the like in order to determine the interior lumen diameter and/or axial length of the passageway at a predetermined location. This instrument can also be used to aid selection of a radioisotope capsule of proper size to be properly positioned at a specific location for tumor treatment. The measuring instrument includes a flexible sleeve having a handle secured to one end. A cable is slidably positioned within the sleeve and secured at one end to a slide actuator within the handle and at the other end terminates in a probe adapted for determining body passageway size under endoscopic observation. A measurement scale is associated with an indicator on the slide actuator in order to display the passageway size.

Body lumen measuring instrument

The disclosure is that of an invention directed to new compositions of matter comprising a mixture of a resin in particulate form and colloidal graphite; and the use of such mixture to form objects of predetermined sizes and shapes, the exposed surfaces of which are strip treated and coated with a cationic surface active agent to make them Heparin-receptive, after which the objects are Heparin-coated to make them thrombo-resistant and non-thrombogenic.

Thrombo-resistant non-thrombogenic objects formed from resin-graphite

Method of making thrombo-resistant non-thrombogenic objects formed from

An indwelling multi-contact plunge electrode to measure the electrical output from areas of the myocardium on an individual, sequential or combination composite basis. The electrode comprises an outer flexible tube containing a plurality of wire leads having their distal ends projecting angularly through the wall of the tube adjacent the distal end thereof and their proximal ends connected to an electrical plug. The distal end portion of the electrode is stiffened and bent at a substantial angle to the proximal portion and the void in the lumen of the tube not occupied by the wire leads is filled with silicone rubber.

Intracardial electrode and a method of manufacture thereof

The disclosure is that of an invention directed to a catheter that includes an internal, distally projecting, proximally removable, puncture needle, thus enabling the catheter to be introduced into a vessel of an animate being without first having to use a sharpened cannula or split needle. A sight zone adjacent the distal end is provided to visually observe blood flow as an indication of proper and accurate insertion.

Needle catheter

The disclosure is that of an invention directed to a flexible tube for intra-venous feeding, the proximal end of which is permanently and leak-proofedly affixed to a connecting hub and the distal end of which comprises a hollow tip configured to closely but freely retain the distal portion of a removable puncture needle. A puncture needle is provided to effect initial insertion into a vein of an animate being; and a sight zone is provided in either or both of the flexible tube and the handle of the puncture needle for visual observation of liquid flow. There is also disclosed a method of internally coating the inner body of the tube and for externally sheathing the inner body by extrusion coating.

Growing community of inventors

Gloversville, NY, United States of America

William M Kline