Patents by Inventor Allan M. Weinstein

Allan M. Weinstein has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5941241
    Abstract: A method and device for organizing, storing, instructing, and coordinating the combined use of aerosol medications for the treatment of disorders including respiratory tract disorders for the purpose of reducing medication error and increasing therapeutic compliance.
    Type: Grant
    Filed: May 12, 1997
    Date of Patent: August 24, 1999
    Inventors: Robert E. Weinstein, Allan M. Weinstein
  • Patent number: 4895141
    Abstract: A unilateral external fixation device comprises a distal frame and a proximal frame interconnected by a hinge formed of mating, partially spherical-shaped surfaces which permits relative movement of the distal frame and proximal frame. Each of the frames includes one or more pin clamps which mount half pins inserted with the proximal or distal segments of a fractured bone to immobilize the bone segments and permit reduction of the fracture. The focal point of the partially spherical-shaped surfaces of the hinge is positioned in direct alignment with the fracture, preferably in a vertical plane passing through the fracture transverse to the longitudinal axis of the bone, so that manipulation of one or both of the distal and proximal frames permits a relatively slight and precise movement of the bone segments connected thereto by the half pins to ensure proper reduction of the fracture.
    Type: Grant
    Filed: November 19, 1987
    Date of Patent: January 23, 1990
    Assignee: Harrington Arthritis Research Center
    Inventors: James B. Koeneman, Thomas M. Hansen, Mark Phillips, Allan M. Weinstein
  • Patent number: 4895573
    Abstract: A femoral-side hip-joint prosthetic device for use in hip-joint replacement. The device includes an elongate stem whose surface defines maximally spaced infero-medial and supero-lateral surface curves, and which is characterized by a surface rotation which carries the supero-lateral surface curve about 15.degree.-30.degree. forward with respect to the infero-medial surface curve, on progressing upward along the upper surface portion of the stem, with the device in operative position. The rotation of the stem surface produces a close approximation to the cavity formed in the proximal femur by removal of the cancellous bone in the natural cavity formed by a wall of densified cancellous bone. A 3.degree.-15.degree. proximal anteversion of the neck is adapted to place a hip-joint ball carried on the stem at a position closely approximating that of the head in the natural femur.
    Type: Grant
    Filed: March 23, 1988
    Date of Patent: January 23, 1990
    Assignee: Harrington Arthritis Research Center
    Inventors: James B. Koeneman, Joseph A. Longo, Roger H. Johnson, Thomas M. Hansen, Allan M. Weinstein, Thomas P. Murray
  • Patent number: 4757809
    Abstract: A pin clamp particularly adapted for use in an external skeletal fixation device to clamp pins inserted in the distal segment and/or proximal segment of a fractured bone for positioning and immobilizing the bone segments to reduce the fracture. The pin clamp employs a wedge lock construction including a block having a tapered, hollow interior which receives a wedge element having opposed, tapered sidewalls connected to a slotted top wall. The pins are inserted between the sidewalls of the wedge element into the slot, and are clamped therebetween as the wedge element is moved into the block. A screw carried by the block threads into a bore in the top wall of the wedge element to move the wedge element in and out of the block. Both the block and wedge element are formed of a composite material and the sidewalls of the wedge element which contact the pins are preferably coated with a grit material having a high coefficient of friction.
    Type: Grant
    Filed: February 10, 1986
    Date of Patent: July 19, 1988
    Assignee: Orthotic Limited Partnership
    Inventors: James B. Koeneman, Thomas M. Hansen, Mark Phillips, Allan M. Weinstein
  • Patent number: 4750905
    Abstract: An improved prosthesis construction in a femoral-side hip joint replacement device of the type having an elongate curved stem held within an intramedullary cavity in a femur, and a neck supporting a ball-like joint member at the femur's proximal end. The construction includes an elongate polymer core containing continuous-filament fibers oriented substantially along the length of the core. The core contains the neck, an elongate distal stem whose cross-sectional area is less than about one-quarter that of the neck, and a tapered sections which mates the neck to the stem. A polymer skin fused to and covering the stem and tapered section of the core is shaped and dimensioned to conform to and fill the bone cavity. A braided sheath encases the stem and tapered sections of the core and it embedded in the polymer skin adjacent the core.
    Type: Grant
    Filed: February 19, 1986
    Date of Patent: June 14, 1988
    Assignee: Harrington Arthritis Research Center
    Inventors: James Koeneman, Thomas Hansen, Ron Yapp, Allan M. Weinstein, Roger Johnson
  • Patent number: 4747400
    Abstract: A unilateral external fixation device for closed reduction of simple or comminuted long bone fractures includes a frame formed of composite materials which mounts a proximal carriage at one end and a distal carriage at the other end. The proximal carriage is adapted to mount half pins inserted in the proximal segment, and is supported on the frame by support arms which are movable with respect to the frame for adjusting the position of the proximal segment. The distal carriage includes a clamping member adapted to mount half pins inserted in the distal segment, which is pivotal about the fracture to permit precise adjustment of the distal segment for alignment with the proximal segment. A fragment support, mounted to one of the side rails of the support arm for the proximal carriage, is adapted to clamp a half pin inserted within a central fragment positioned between the proximal and distal segments of a comminuted fracture.
    Type: Grant
    Filed: October 25, 1985
    Date of Patent: May 31, 1988
    Assignee: Harrington Arthritis Research Center
    Inventors: James B. Koeneman, Thomas M. Hansen, Mark Phillips, Allan M. Weinstein
  • Patent number: 4738681
    Abstract: A femoral-side hip-joint prosthetic device for use in hip-joint replacement. The device includes an elongate stem whose surface defines maximally spaced infero-medial and supero-lateral surface curves, and which is characterized by a surface rotation which carries the supero-lateral surface curve about 18.degree.-30.degree. forward with respect to the infero-medial surface curve, on progressing upward along the upper surface portion of the stem, with the device in operative position. The rotation of the stem surface produces a close approximation to the cavity formed in the proximal femur by removal of the cancellous bone in the natural cavity formed by a wall of densified calcellous bone. A 3.degree.-15.degree. proximal anteversion of the neck is adapted to place a hip-joint ball carried on the stem at a position closely approximating that of the head in the natural femur.
    Type: Grant
    Filed: July 10, 1985
    Date of Patent: April 19, 1988
    Assignee: Harrington Arthritis Research Center
    Inventors: James B. Koeneman, Joseph A. Longo, Roger H. Johnson, Thomas M. Hansen, Allan M. Weinstein, Thomas P. Murray