Patents Examined by D. Willse
  • Patent number: 6187037
    Abstract: A metal stent for vascular implantation comprising a generally tubular structure whose external surface is adapted to engage the interior vascular surface when implanted, said metal of said stent containing a substantially uniform dispersion of from about 0.05 to about 10.00 percent by weight of one or more naturally occurring or enriched stable isotopes having a half-life of less than two months and that are principally beta particle emitters, so that when activated, said stent emits low to moderate dosages of radiation uniformly to reduce cell proliferation.
    Type: Grant
    Filed: March 11, 1998
    Date of Patent: February 13, 2001
    Inventor: Stanley Satz
  • Patent number: 5509938
    Abstract: A prosthetic foot is characterized by the provision of one or more bladders to vary the performance characteristics of the prosthesis. The bladders preferably include multiple chambers formed by full or partial bifurcation of the bladder, and may be tapered to permit operative alignment of the bladder with certain structural members of the foot. The pressure in the bladder is preferably alterable through the provision of valve means communicating with the bladder. A retaining strap is preferably provided to limit the movement of certain structural members of the foot with respect to other such structural members.
    Type: Grant
    Filed: January 4, 1994
    Date of Patent: April 23, 1996
    Inventor: Van L. Phillips
  • Patent number: 5423887
    Abstract: A concentric mating stent tissue heart valve which is capable of being assembled with a variety of tissue sources is provided. A plurality of prefabricated kits are also provided which enable the valve to be assembled with autogenous tissue in the limited time, i.e., 10 minutes or less, available in the operating room. The inner stent can be configured with a plurality of tissue alignment members extending outward from the inner stent to corresponding holes cut in the tissue. The outer stent can be configured with posts adapted for nesting with corresponding inner stent posts, and integrated with self-adjusting tensioning means, to exert a substantially uniform clamping force on the tissue sufficient to secure the tissue between the stents.
    Type: Grant
    Filed: August 3, 1992
    Date of Patent: June 13, 1995
    Assignee: Autogenics
    Inventors: Charles S. Love, Jack W. Love, John H. Calvin
  • Patent number: 5376140
    Abstract: An improved prosthetic foot construction providing resilient lateral flexion as well as excellent longitudinal flexion and energy recovery includes a core frame embedded in an expanded polymer body that mimics the shape of a natural foot. The core frame extends in a generally vertical plane, and comprises a modified trapezoidal shape having an open medial region. The frame includes an upper side having a mounting bolt extending therethrough to a lower leg prosthesis, and a lower side generally parallel to the sole of the prosthesis. The rear side of the trapezoid extends generally parallel to the rear heel surface of the prosthesis, and the front side extends obliquely from the upper side toward the lower side. A ball and socket connection joins the front side and the lower side of the frame, so that the oblique front side of the frame may undergo rotational motion with respect to the remainder of the frame.
    Type: Grant
    Filed: September 21, 1992
    Date of Patent: December 27, 1994
    Inventor: Michael W. Ryan
  • Patent number: 5376139
    Abstract: An artificial ankle and foot is disclosed. The ankle and foot comprise a tibia, a rear-midfoot, and a forefoot (toes), which contact each other at cam surfaces. Extensible elastic ties interconnect the tibia and rear-midfoot and the rear-midfoot and the forefoot. The ties are attached to the respective components at points or zones of attachment which are movable with respect to each other in accordance with the forces acting on the foot and ankle and the rolling motion of the cam surfaces. The relative movement of the zones of attachment alters the tension in the elastic ties, thereby limiting or increasing mobility in the joints between the tibia and rear-midfoot and between the rear-midfoot and the forefoot.
    Type: Grant
    Filed: September 21, 1992
    Date of Patent: December 27, 1994
    Inventor: Mark R. Pitkin
  • Patent number: 5376132
    Abstract: A visco-elastic polymer liner for use in donning over a residual limb and fitting within the socket of an artificial limb. The liner is shaped to have its cavity formed with a volume and shape less than a volume and shape of the residual limb for both tension and tissue configuration relief while the liner has an outer surface formed with a volume and shape greater than the volume and shape of the artificial limb socket for relief of certain tissue configurations and to create weight bearing, relief and compression areas on and in the liner to absorb and dissipate shock, shear and mechanical forces through the liner otherwise transmitted to the residual limb. The liner may have imbedded on its inner cavity side electrodes adjacent muscles that are sensitive to the muscle action potentials to generate signals to a power source to move an articulable artificial limb.
    Type: Grant
    Filed: October 26, 1993
    Date of Patent: December 27, 1994
    Inventor: Carl A. Caspers
  • Patent number: 5344416
    Abstract: An absorbent article, such as a sanitary napkin, having flaps that have inwardly-folded pleats that provide zones of differential extensibility for relieving the stresses that develop in the flaps when the flaps are folded down along the edges of crotch of the wearer's undergarments is provided.
    Type: Grant
    Filed: August 18, 1993
    Date of Patent: September 6, 1994
    Assignee: The Procter & Gamble Company
    Inventors: Kaoru Niihara, Thomas W. Osborn, III
  • Patent number: 5344446
    Abstract: A teaching playback swing-phase-controlled above-knee prosthesis comprises a thigh frame, a leg frame, an air cylinder interconnecting the thigh and leg frames and provided with adjusting means for adjusting the degree of opening the valve of the air cylinder to a plurality of degrees respectively for a plurality of walking speeds selected during trial walking, a mode selecting switch having positions respectively for setting degrees of opening of the valve of the air cylinder in a teaching mode and for a playback mode in which one of the degrees of opening is selected according to an actual walking speed, an opening detector for detecting the degree of opening of the valve of the air cylinder, an opening storage device for storing a plurality of set degrees of opening of the valve of the air cylinder, a phase detector for detecting swing phases and stance phases, walking speed detector for detecting an actual walking speed, and control unit for adjusting the degree of opening of the valve of the air cylinder
    Type: Grant
    Filed: April 13, 1992
    Date of Patent: September 6, 1994
    Assignees: Kabushiki Kaisha Kobe Seiko Sho, Hyogo-ken Shakaifukushijigyodan
    Inventors: Seishi Sawamura, Sakuya Nakajima, Kunio Amemori, Hidehisa Oku, Akio Nakagawa, Ichiro Kitayama, Hiromu Matsuda, Katsuhiko Yoshida, Masaru Takeda, Toshio Nakane, Shiro Horiguchi, Shigeru Yuki
  • Patent number: 5342331
    Abstract: A flow-controlling tampon, comprising a generally upright elongated sheath structure having an open upper end and a closed lower end, the upper end sized to fit about the cervix an inner, elongated, flow-control tube extending generally upright within the sheath, the tube having an upper open end to receive flow via the upper open end of the sheath, and the flow-control tube having lower opening structure to pass flow from the tube into the lower interior of the sheath to gradually collect upwardly from the lower interior of the sheath, and about the control tube.
    Type: Grant
    Filed: January 11, 1993
    Date of Patent: August 30, 1994
    Inventors: Arthur L. Silber, Raymond C. Ng, James C. Caillouette
  • Patent number: 5336269
    Abstract: The invention comprises a method and apparatus for switching between degrees of freedom in a prosthesis responsive to myoelectric signals generated by muscles. In the invention, an average pattern corresponding to a specified muscle contraction is stored in memory. In operation, the invention continuously stores a specified preceding interval of the incoming myoelectric signals and compares the data in that interval with the stored average pattern. If the incoming data is sufficiently similar to the stored average pattern, a recognition occurs and the device switches degrees of freedom.
    Type: Grant
    Filed: June 9, 1992
    Date of Patent: August 9, 1994
    Assignee: Liberty Mutual Insurance Co.
    Inventor: Matthijs P. Smits
  • Patent number: 5336270
    Abstract: A one-piece continuous polymeric prosthesis is disclosed and taught. The prosthesis is intended for patients with a below-knee amputation. The one-piece socket-pylon-keel allows good energy storage and release for a superior feel during physical activities. The construction and the materials makes for a much lighter weight prosthesis than conventional types.
    Type: Grant
    Filed: June 8, 1993
    Date of Patent: August 9, 1994
    Assignee: Wright & Filippis, Inc.
    Inventor: Lawrence A. Lloyd
  • Patent number: 5336259
    Abstract: A method of making a prosthetic heart valve having an occluder which is supported to pivot between open and closed positions in an annular valve body made of pyrocarbon or a pyrocarbon-coated substrate. The valve body contains diametrically opposed pivot supports formed on the interior surface thereof and is distended by subjecting it to diametrically opposed compressive forces of a nature which place extensive exterior regions of the valve body in compression while increasing the distance between the pivot supports. After the occluder is installed in the distended annular valve body, removal of the opposed compressive forces permits the valve body to return to an unstressed, generally circular configuration with the occluder operatively secured between the pivot supports. These forces are applied using flexible, inextensible cables or resilient pressure pads.
    Type: Grant
    Filed: February 5, 1993
    Date of Patent: August 9, 1994
    Assignee: Carbon Implants, Inc.
    Inventors: C. Thomas Waits, Jonathan C. Stupka, T. Scott Peters, Alan S. Schwartz
  • Patent number: 5330456
    Abstract: A disposable absorbent panel assembly including a fibrous absorbent panel and a liquid transfer layer. The fibrous absorbent panel includes front and rear end panel portions, and central panel section extending between the end panel portions. The central panel section has opposite side edge panel portions and a central panel portion positioned between the side edge panel portions. The end panel portions have a relatively lesser basis weight than the side edge central portions. The fibrous absorbent panel contains highly-sorbent superabsorbent material which is substantially confined to the central panel portion. The liquid transfer layer is positioned above the fibrous absorbent panel and extends longitudinally thereof at least along the length of the central panel portion. The liquid transfer layer promotes wicking and distribution of liquid within the absorbent panel assembly.
    Type: Grant
    Filed: July 8, 1993
    Date of Patent: July 19, 1994
    Assignee: Paragon Trade Brands, Inc.
    Inventor: Robin K. Robinson
  • Patent number: 5326371
    Abstract: A concentric mating stent tissue heart valve which is capable of being assembled with a variety of tissue sources is provided. A plurality of prefabricated kits are also provided which enable the valve to be assembled with autogenous tissue in the limited time, i.e., 10 minutes or less, available in the operating room. The inner stent can be configured with a plurality of tissue alignment members extending outward from the inner stent to corresponding holes cut in the tissue. The outer stent can be configured with posts adapted for nesting with corresponding inner stent posts, and integrated with self-adjusting tensioning means, to exert a substantially uniform clamping force on the tissue sufficient to secure the tissue between the stents.
    Type: Grant
    Filed: August 3, 1992
    Date of Patent: July 5, 1994
    Assignee: Autogenics
    Inventors: Charles S. Love, Jack W. Love, John H. Calvin
  • Patent number: 5326361
    Abstract: The invention is a total knee endoprosthesis with a fixed flexion-extension axis throughout all degrees of flexion and extension of the knee. The endoprosthesis has a femoral component with spaced apart medial and lateral condyle portions which slidably seat on a tibial implant portion. The fixed flexion-extension axis is directed inferiorly and posteriorly from the medial condyle portion to the lateral condyle portion and is offset from both the transverse and coronal planes equally by 3.0 to 3.8 degrees. A longitudinal axis through the tibia allows the tibia to rotate nonorthogonally and anteriorly of the flexion-extension axis. A patellar groove which is perpendicular to the flexion-extension axis. In the patellar groove slides an optional patellar component or the natural patella.
    Type: Grant
    Filed: May 26, 1993
    Date of Patent: July 5, 1994
    Assignee: Research and Education Institute, Inc.
    Inventor: Anne Hollister
  • Patent number: 5326366
    Abstract: A prosthetic implant for resurfacing a damaged base portion of the proximal phalanx in a human great toe comprises a base fabricated from a titanium, ceramic or other durable and rigid biocompatible material. The base is generally elliptical and includes an anatomically-shaped proximal articular surface having an enlarged build-up on the lateral end thereof. The base also includes a generally planar distal seating surface disposed for engaging the sectioned portion of the proximal phalanx. An elongated stem extends distally from the seating surface of the base and includes an array of fins together having a cruciate-shaped cross section. The fins each include a plurality of serrations along their sloping edges for anchoring the stem within the cancellous portion of the proximal phalanx.
    Type: Grant
    Filed: February 16, 1993
    Date of Patent: July 5, 1994
    Assignee: Wright Medical Technology, Inc.
    Inventors: Joanne M. Pascarella, John V. Vanore
  • Patent number: 5326360
    Abstract: An expandable endoprosthesis for a joint and adjacent bone parts has first and second joint component parts. The second component has a part at one end thereof for a portion of a joint. The second component has a telescoping stem coupled to its joint part for attachment to a long bone. The telescoping stem has an inner and an outer member axially adjustable with respect to one another by means of a threaded spindle and a threaded spindle nut attached respectively to either the inner or outer member. A pinion gear is attached to either the spindle or spindle nut for rotation therewith. An indexing system is provided to rotate the pinion a predetermined amount upon movement of the first and second joint components towards one another after implantation and thereby lengthen the second joint component stem.
    Type: Grant
    Filed: November 30, 1992
    Date of Patent: July 5, 1994
    Assignee: Howmedica GmbH
    Inventors: Rainer Kotz, Reinhard Windhager
  • Patent number: 5326351
    Abstract: A jersey sheath drawing device for fitting contact prostheses, whereby an upper or lower limb amputee can easily put on his own prosthesis. The workload of hospital staff assigned to assisting amputees in specialized rehabilitation centres can also be reduced. The device comprises a bearing (10) designed to rest on the rim of the opening (2) at the end of the nest (1) of the prosthesis, a self-locking catch (12) for tightly gripping the jersey sheath (1B) across the whole or only a part of its cross-section, a pulling runner (11) sliding on a sliding frame (6) and controlling the locking catch (12). The pulling runner (11) can be moved manually by means of the handles (6A, 8) or electrically by means of an endless screw driven by a motor. The device allows both the prosthesis (1) to be guided towards the stump (1A) for fitting thereto and the sheath (1B) to be pulled tight while using only one hand, the device staying in place throughout the process.
    Type: Grant
    Filed: November 6, 1992
    Date of Patent: July 5, 1994
    Inventor: Maurice Sarazin
  • Patent number: 5326369
    Abstract: A motor actuated screw device for the transmission of torque over articulating surfaces finding particular use in prosthetic devices used as mechanical artificial hands. The device employs a high torque motor mounted on a support platform which is attached to a cable or universal joint having at least one externally threaded cincture affixed to the cable. The placement of at least one articulating member hingedly mounted to the support platform with an internally threaded guide bushing affixed to the articulating member allows the cincture to be placed therethrough allowing the motion to rotate the cable/cincture causing the articulating member to rotate about the hinge connection to the support base. The use of multiple members attached to the articulating member together with hinges placed therebetween, allows the use of the instant device to move all of the members according to predetermined threaded engagement providing each member with nearly a direct torque transfer from the motor.
    Type: Grant
    Filed: June 12, 1992
    Date of Patent: July 5, 1994
    Inventor: Leonard A. Schectman
  • Patent number: 5326353
    Abstract: A leg prothesis device for use as an upper leg prothesis permitting the wearer of the device to kneel thereupon comprising a first member adapted to support an upper leg prosthesis and a second member spaced from the first member adapted to support a lower leg portion connected to a foot prothesis. The first and second members are movable with respect to each other between a maximum leg angle of about 180.degree. and a minimum leg angle of about 20.degree.. A connecting member connecting the first and second members comprises three arm portions: (1) a curved portion pivotally connected at one distal end to the first member and defining a pivot axis between the first and second members; (2) a first linear portion that is integral with the curved portion; and (3) a second linear portion angularly connected to the first linear portion.
    Type: Grant
    Filed: December 9, 1992
    Date of Patent: July 5, 1994
    Inventor: James D. Franklin