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| Number | Title | Issue Date |
| 5358689 | Hollow fiber blood oxygenator A hollow fiber blood oxygenator is provided having an plurality of enclosed, coaxial heat exchanger coils, having a common header to insure uniform temperature in the coils. An enclosed fiber bundle is concentrically positioned inside the heat exchanger c... | 10/25/1994 |
| 5067496 | Tracheostomy tube The specification discloses a tracheostomy tube which includes an outer cannula which has a tubular wall, a distal end for placement within the trachea of a patient and a proximal end for placement outside of the trachea. The outer cannula has an inflatab... | 11/26/1991 |
| 4927222 | Dual optical fiber device A device for transmitting electromagnetic radiation to a radiation sensitive component and receiving output radiation from said component comprising a radiation-transmissible junction formed by contacting the tip of a first optical fiber with an intermedi... | 05/22/1990 |
| 4833091 | Sensor system A method of measuring the concentration of carbon dioxide in a medium by determining the water content in a pH-independent sensor system comprising an optical fiber having attached thereto a fluorescence indicator embedded in a carrier matrix containing a... | 05/23/1989 |
| 4822127 | Multi-channel optical transmission system A multi-channel electromagnetic radiation transmission system comprising a plurality of first cladded optical fibers coupled to at least one second cladded optical fiber through a series of radiation-transmissible junctions each of which is encased in an ... | 04/18/1989 |
| 4647416 | Method of preparing a vascular graft prosthesis A ribbed, porous tube suitable for use as a vascular graft prosthesis is prepared by scoring a stretched or unstretched tube of PTFE, stretching the tube at 200°-320° C. to develop the desired porosity, and heat setting the scored, stretched tube at 327... | 03/03/1987 |
| 4626240 | Dual lumen subclavian cannula A dual lumen subclavian cannula is disclosed for use in hemodialysis where the lumens are formed by a septum dividing an essentially circular tube longitudinally. The blood return lumen is closed at its distal end by a blunt point and has openings in its ... | 12/02/1986 |
| 4588399 | Cannula with radiopaque tip A cannula for insertion into a body cavity, duct, or vessel of a patient includes a parent cannula member and an integral radiopaque tip. The tip is configured so as to be distinguishable from internal body parts in an X ray or flouroscopic image, thus se... | 05/13/1986 |
| 4568367 | Blood defoamer with improved liquid seal A blood defoamer for use in surgical procedures is disclosed comprising a porous defoaming element, a non-porous end piece in contact with a surface of the defoaming element, and a layer of fabric affixed to the end piece adjacent to said surface. Bypass ... | 02/04/1986 |
| 4556489 | Membrane oxygenator A novel device for mass transfer across a membrane is disclosed, which is particularly suitable for use as a blood oxygenator. The novel device is of the type having a pleated, selectively permeable membrane defining first and second sets of alternating p... | 12/03/1985 |
| 4550447 | Vascular graft prosthesis A porous tube suitable for use as a vascular graft prosthesis is disclosed. It is reinforced by external ribs, integral with the tube wall. These ribs are generally transverse to the tube axis and less porous than the wall. Suitable tubing can be made fro... | 11/05/1985 |
| 4502159 | Tubular prostheses prepared from pericardial tissue Novel tubular prostheses, e.g. vascular or ureteral prostheses, prepared by sewing the opposed edges of a sheet of pericardial tissue together with a thread to form a longitudinal seam are disclosed. By disposing the thread in a suitable configuration alo... | 03/05/1985 |
| 4411783 | Arterial blood filter with improved gas venting A novel liquid filter of the "outside-in" type is disclosed, comprising a hollow tubular housing, a concentrically disposed perforated tubular core surrounded by a cylindrical filter element and communicating with a liquid outlet in the bottom wall of the... | 10/25/1983 |
| 4403983 | Dual lumen subclavian cannula A dual lumen subclavian cannula is disclosed for use in hemodialysis where the lumens are formed by a septum dividing an essentially circular tube longitudinally. The blood return lumen is closed at its distal end by a blunt point and has openings in its ... | 09/13/1983 |
| 4276132 | Electro-chemically machined ring and strut structure for prosthetic heart valves This invention relates to the electrochemical machining of integrally formed prosthetic heart valve structures in which both the structural integrity of the valve and the blood flow through the valve is improved as a result of the integral formation of th... | 06/30/1981 |
| 4183961 | Method of oxygenating blood A method of oxygenating venous blood in a blood oxygenator wherein blood and oxygen are admixed by flowing blood, into which has been introduced bubbles of oxygen, through a three dimensional, open cellular mixing material having a substantial void volume... | 01/15/1980 |
| 4182739 | Blood oxygenator A blood oxygenator wherein blood and oxygen are admixed by flowing blood, into which has been introduced bubbles of oxygen, through a three-dimensional, open cellular mixing material having a substantial void volume. The resulting arterialized blood and b... | 01/08/1980 |
