Donald D Elliott

US Patent:

D2678152, Feb 1, 1983

Filed:

May 26, 1981

Appl. No.:

6/266981

Inventors:

Donald P. Elliott - Denver CO
William L. Halseth - Parker CO
William R. King - Lakewood CO

Assignee:

C. R. Bard Inc. - Murray Hill NJ

International Classification:

D2402

US Classification:

D24 59

US Patent:

47386711, Apr 19, 1988

Filed:

Jul 13, 1987

Appl. No.:

7/072357

Inventors:

Donald P. Elliott - Denver CO
William R. King - Lakewood CO

Assignee:

C. R. Bard, Inc. - Murray Hill NJ

International Classification:

A61M 100

US Classification:

604319

Abstract:

This invention relates to a novel and improved chest drainage apparatus characterized by a bottle housing a fluid collection chamber and a fluid inlet connectable to receive fluid and air from a chest cavity to be drained, air inlet and exhaust ports downstream of the fluid inlet open to the atmosphere within the air space above the fluid collected, and a U-tube between the fluid inlet and the air exhaust port capable of collecting and retaining an amount of fluid effective to provide a visual indication of any air flow into the system; a subassembly including an air chamber containing a check valve effective when connected to receive air from the exhaust port of the bottle to prevent backflow thereof into the system; and a negative pressure relief valve connected to the air intake port automatically operative to limit the negative pressure, if any, in the air space above the fluid to a predetermined maximum. The invention also encompasses such an apparatus wherein the subassembly is detachable from the bottle and the latter is used by itself in inverted position as a reservoir of chest fluids that may be reintroduced back into the body. Also included in the apparatus in its preferred form are a positive pressure relief valve downstream of the check valve in the air chamber automatically operative to maintain the air pressure in the latter at or below a predetermined maximum.

US Patent:

48223468, Apr 18, 1989

Filed:

Apr 13, 1988

Appl. No.:

7/181189

Inventors:

Donald P. Elliott - Denver CO

Assignee:

C. R. Bard, Inc. - Murray Hill NJ

International Classification:

A61M 100

US Classification:

604319

Abstract:

This invention relates to a novel and improved chest drainage apparatus characterized by a bottle housing a fluid collection chamber and a fluid inlet connectable to receive fluid and air from a chest cavity to be drained, air inlet and exhaust ports downstream of the fluid inlet open to the atmosphere within the air space above the fluid collected, and a U-tube between the fluid inlet and the air exhaust port capable of collecting and retaining an amount of fluid effective to provide a visual indication of any air flow into the system; a subassembly including an air chamber containing a check valve effective when connected to receive air from the exhaust port of the bottle to prevent the backflow thereof into the system; and a negative pressure relief valve connected to the air intake port automatically operative to limit the negative pressure, if any, in the air space above the fluid to a predetermined maximum. The invention also encompasses such an apparatus wherein the subassembly is detachable from the bottle and the latter is used by itself in inverted position as a reservoir of chest fluids that may be reintroduced back into the body. Also included in the apparatus in its preferred form are a positive pressure relief valve downstream of the check valve in the air chamber automatically operative to maintain the air pressure in the latter at or below a predetermined maximum.

US Patent:

47158565, Dec 29, 1987

Filed:

Aug 13, 1985

Appl. No.:

6/765315

Inventors:

Donald P. Elliott - Denver CO
William L. Halseth - Parker CO

Assignee:

C. R. Bard, Inc. - Murray Hill NJ

International Classification:

A61M 100

US Classification:

604321

Abstract:

This invention relates to an improved chest fluid drainage bottle of the type having a fluid collection chamber connectable to receive fluid sucked from the patient's chest, the improvement consisting of an improved air leak detection system characterized by a fluid filled U-tube downstream of the air space overlying the fluid collecting chamber cooperating therewith to define an air leak detector substantially insensitive to small intermittent variations in upstream pressure while, at the same time, providing an observer with a reliable visual indication of a continuous upstream leak. The improvement also encompasses an anti-splash baffle adjacent the outlet of the U-tube effective to prevent the fluid therein from leaving same and, perhaps, entering the vacuum system upon the application of larger than normal intermittent upstream positive pressure surges.

US Patent:

57725837, Jun 30, 1998

Filed:

Dec 29, 1995

Appl. No.:

8/581035

Inventors:

John T. M. Wright - Denver CO
Donald P. Elliott - Denver CO
Francis C. Wells - Sandy, Befordshire SG193AU, GB2

International Classification:

A61B 130
B25G 336

US Classification:

600232

Abstract:

A sternal retractor for applying an opening force evenly along the respective edges of a patient's sternum during heart surgery comprises a curved rack having a length, a width, and a thickness, wherein the rack is curved in the thickness direction, hinged arms mounted to the rack, a cog mechanism for forcing one of the arms to move along the rack, and retractor blades pivotally mounted to the arms. An atrial retractor which are used to retract the left and right atrium connects to an arm of the sternal retractor by an H-shaped mounting rod assembly. The assembly comprises two elongated rods mounted in spaced parallel relationship by a clamp proximate the center of the rods. A ball clamp associated with the sternal retractor and atrial retractor comprises locking discoid blocks for releasably interconnecting a plurality of rods together.

US Patent:

50714147, Dec 10, 1991

Filed:

Nov 27, 1989

Appl. No.:

7/441532

Inventors:

Donald P. Elliott - Denver CO

International Classification:

A61F 1315

US Classification:

6043851

Abstract:

An improvement to a disposable diaper, forming a self packaging pocket integral with one of the body panels of the diaper and comprising a pliant membrane disposed and secured to the outside moisture impervious backing surface of the diaper body over the end area thereof and forming a transverse open ended pocket to be turned inside out over the rolled up diaper after its use to seal and compactly store the used diaper in a rolled up configuration.

US Patent:

45443700, Oct 1, 1985

Filed:

May 24, 1982

Appl. No.:

6/381161

Inventors:

Donald P. Elliott - Denver CO
William L. Halseth - Parker CO

Assignee:

C. R. Bard, Inc. - Murray Hill NJ

International Classification:

A61M 100

US Classification:

604319

Abstract:

This invention relates to an improved chest fluid drainage bottle of the type having a fluid collection chamber connectable to receive fluid sucked from the patient's chest, the improvement consisting of an improved air leak detection system characterized by a fluid filled U-tube downstream of the air space overlying the fluid collecting chamber cooperating therewith to define an air leak detector substantially insensitive to small intermittent variations in upstream pressure while, at the same time, providing an observer with a reliable visual indication of a continuous upstream leak. The improvement also encompasses an anti-splash baffle adjacent the outlet of the U-tube effective to prevent the fluid therein from leaving same and, perhaps, entering the vacuum system upon the application of larger than normal intermittent upstream positive pressure surges.

US Patent:

40419312, Aug 16, 1977

Filed:

May 17, 1976

Appl. No.:

5/687034

Inventors:

Donald P. Elliott - Denver CO
William L. Halseth - Parker CO

International Classification:

A61B 1900

US Classification:

128 1R

Abstract:

This invention relates to split ring markers fabricated in whole or in part from a radiopaque material, usually metal, having the terminal ends thereof and a medial portion formed to define eyelets by means of which said marker can be sutured to the tissue at the site of an anastomosis to provide a visual indication of its location when examined fluoroscopically.