Paul F Rice

US Patent:

48422592, Jun 27, 1989

Filed:

Mar 18, 1988

Appl. No.:

7/170273

Inventors:

Paul Rice - Littleton MA

International Classification:

G03B 4116

US Classification:

269323

Abstract:

An apparatus for tilting a patient supported on a diagnostic table and simultaneously maintaining a selected isocenter of the patient at a selected fixed point in space comprising a table for supporting the patient within an examination zone of a diagnostic apparatus; a vertical carriage mechanism connected to an end of the table for raising and lowering the end of the table through a predetermined range of vertical travel; a tilt pivot connecting the end of the table and the vertical carriage mechanism, for supporting the table and tilting through an arc of at least about 10 degrees; a horizontal leg mechanism movably mounted to the vertical carriage mechanism for moving the vertical carriage mechanism and the table through a predetermined range of horizontal travel; the vertical carriage mechanism being movably mounted on the horizontal leg mechanism; the horizontal leg means being movably mounted on an overhead arm mechanism; wherein the vertical carriage mechanism is movable along a vertical travel and the horizontal leg mechanism is movable along a horizontal travel sufficient to maintain the isocenter of the patient at the fixed point in space when the table is tilted around the tilt pivot.

US Patent:

43631282, Dec 7, 1982

Filed:

Sep 29, 1980

Appl. No.:

6/191532

Inventors:

John K. Grady - Concord MA
Paul G. Rice - Lincoln MA

International Classification:

G03B 4116

US Classification:

378181

Abstract:

An X-ray apparatus has a moveable support on which are slidingly mounted an X-ray tube, an image intensifier and a film holder, these radiation components defining a common radiation axis. By including a reversible motor connected to a system of clutch operated drive linkages the X-ray tube and receptors can be selectively and reciprocally moved along the radiation axis in either an independent or interdependent manner so as to preserve a radiologically desirable Source to Image Distance (SID) while simultaneously accommodating other X-ray examination requirements such as patient comfort, safety, and desired examining position. The X-ray tube is attached to a lever arm and the image intensifier and film holder are each moved by respective cables travelling around respective drive pulleys and idler pulleys. Both the X-ray tube and receptors are closely counterbalanced by counterweights respectively moved by the cables. When the drive motor is appropriately engaged, a connecting shaft, belt or sprocket chain transmits the motor's force selectively through intermediate, force limited, slip clutches to the appropriate X-ray components.

US Patent:

45411085, Sep 10, 1985

Filed:

Jan 30, 1984

Appl. No.:

6/575203

Inventors:

John K. Grady - Harvard MA
Paul G. Rice - Lincoln MA

International Classification:

G03B 4116
G01N 2100
G01N 2300
G03D 1100

US Classification:

378196

Abstract:

X-ray apparatus has a rotor on a standard, the rotor including two rings, one fixed on the rotor and the other rotating on an axis normal to the rotor axis. Posts on the rotating ring parallel to its axis carry an X-ray tube and an X-ray receptor on a radiation axis intersecting the ring axis at an isocenter and capable of angulation about the isocenter. A patient table is slidingly mounted on the fixed rotor ring extending through apertures in both rings. Turning of the rotor tilts the patient table in a head to foot direction while turning of the rotating ring revolves the patient on his own axis.

US Patent:

48540161, Aug 8, 1989

Filed:

Nov 24, 1987

Appl. No.:

7/124908

Inventors:

Paul Rice - Littleton MA

International Classification:

A41F 100

US Classification:

24495

Abstract:

A device for clamping the edge of a diagnostic table top comprising a clamping block mechanism having an inside face for abutting the side edge of the table top; a first jaw mechanism connected to the clamping block mechanism having an inner face for abutting one of the top or the bottom surfaces of the table top; a second jaw mechanism pivotably connected to the clamping block mechanism having an inner face for abutting the other of the top or bottom surfaces of the table top; the second jaw mechanism being connected to the clamping block mechanism by a link mechanism and a shaft mechanism, wherein the link mechanism is pivotably connected to the clamping block mechanism and pivotably connected to the second jaw mechanism and wherein the shaft mechanism is movably mounted in the clamping block mechanism such that when the shaft mechanism is moved, the second jaw mechanism articulates between a clamping position and an open position.

US Patent:

45680710, Feb 4, 1986

Filed:

Jan 30, 1984

Appl. No.:

6/575207

Inventors:

Paul G. Rice - Lincoln MA

International Classification:

A61G 1300

US Classification:

269322

Abstract:

A radiotransparent table for supporting a patient in an X-radiography zone slides in linear bearings on a standard. The table is motor driven through a cable or like linkage anchored at the head and foot of the table and passing over the motor drive roll and an idler roll located on the stand between the drive roll and zone so that substantially the full length of the table can be moved to the radiography zone. The head and foot anchors are unobstructed in movement toward the drive roll. Preferably there are two symmetrical sets of rolls, anchors and linkages at opposite sides of the table applying neutralizing torques to the table.

US Patent:

46813080, Jul 21, 1987

Filed:

Jul 24, 1986

Appl. No.:

6/890803

Inventors:

Paul Rice - Littleton MA

International Classification:

A61G 1300

US Classification:

269322

Abstract:

A diagnostic patient support structure including a base and a table top structure. The table top structure includes a central section for supporting the patient's torso and discrete leg extension sections diverging therefrom at an acute angle for supporting the patient's respective legs.

US Patent:

43653430, Dec 21, 1982

Filed:

Nov 4, 1980

Appl. No.:

6/203963

Inventors:

John K. Grady - Lincoln MA
David B. Rice - Cambridge MA
Paul G. Rice - Lincoln MA

Assignee:

XRE Corporation - Concord MA

International Classification:

G03B 4116

US Classification:

378181

Abstract:

X-ray apparatus comprises a U-shaped support having two hollow, horizontal arms. On the end of one arm is mounted an X-ray tube and on the other an X-radiation receptor both guided for movement on a radiation axis. A counterweight within one hollow, horizontal arm is guided for movement parallel to the X-ray tube, transversely of the arm. To counterbalance the X-ray tube a lever attached to the tube has sliding pivots at a fulcrum and the counterweight allowing the lever arm to change its length without changing the leverage ratio.

US Patent:

46495606, Mar 10, 1987

Filed:

Jan 30, 1984

Appl. No.:

6/575204

Inventors:

John K. Grady - Littleton MA
Paul G. Rice - Lincoln MA
Kip P. Van Steenburg - Wayland MA

International Classification:

H05G 102

US Classification:

378196

Abstract:

An X-ray tube and receptor are held on opposite ends of a two-limbed carriage mounted on a sliding arm. The arm is carried on a rotating support, the arm extending parallel to the rotational axis of the support. The two-limbed carriage pivots on the arm about a second axis perpendicular to the rotational axis and to a radiation axis extending between the X-ray tube and receptor.

Author:

Paul F. Rice

ISBN #:

0442269048

Author:

Paul F. Rice

ISBN #:

0442269064

Author:

Paul F. Rice

ISBN #:

0442276338

Author:

Paul F. Rice

ISBN #:

0442369034

Author:

Paul F. Rice

ISBN #:

0835718697

Author:

Paul F. Rice

ISBN #:

0773488650

Author:

Paul R. Rice

ISBN #:

0820524980

Author:

Paul R. Rice

ISBN #:

0820562092